Physics – Chapter 10 Worksheet 1
... 13. A ball has a speed of 15 m/s. Only one external force acts on the ball. After this force acts, the speed of the ball is 7 m/s. Has the force done positive or negative work? Explain. 14. When a punter kicks a football, is he doing work on the ball while his toe is in contact with it? Is he doing ...
... 13. A ball has a speed of 15 m/s. Only one external force acts on the ball. After this force acts, the speed of the ball is 7 m/s. Has the force done positive or negative work? Explain. 14. When a punter kicks a football, is he doing work on the ball while his toe is in contact with it? Is he doing ...
Motion and forces (Ch 10 and 11)
... How does friction affect motion? It opposes any applied force ...
... How does friction affect motion? It opposes any applied force ...
Force II PPT
... • Force would only be in the vertical plane • How would you calculate the horizontal and vertical force components if the angle of the rope with the floor was 57° and the Force of tension (FA) in the ...
... • Force would only be in the vertical plane • How would you calculate the horizontal and vertical force components if the angle of the rope with the floor was 57° and the Force of tension (FA) in the ...
Net Force
... For example a book sitting on a table, is not moving and does not move unless acted upon by an unbalanced force. When it isn’t moving there are two forces: gravity and the table. The table’s force on the book is known as a NORMAL FORCE Since the two forces are balanced then the book isn’t moving. Th ...
... For example a book sitting on a table, is not moving and does not move unless acted upon by an unbalanced force. When it isn’t moving there are two forces: gravity and the table. The table’s force on the book is known as a NORMAL FORCE Since the two forces are balanced then the book isn’t moving. Th ...
Name
... 24. Which kind of friction requires more force to overcome, rolling friction or sliding friction? ____________________________________________________________________ ____________________________________________________________________ ...
... 24. Which kind of friction requires more force to overcome, rolling friction or sliding friction? ____________________________________________________________________ ____________________________________________________________________ ...
Newton`s Laws webquest
... Sixth Stop: Find your weight on Other Planets…MASS VS. WEIGHT! http://www.exploratorium.edu/ronh/weight/ 1. Enter in your weight and click “calculate”. On which planet do you weigh the most? _________________ On which planet do you weight the least? _____________________ 2. How much do you weigh on ...
... Sixth Stop: Find your weight on Other Planets…MASS VS. WEIGHT! http://www.exploratorium.edu/ronh/weight/ 1. Enter in your weight and click “calculate”. On which planet do you weigh the most? _________________ On which planet do you weight the least? _____________________ 2. How much do you weigh on ...
ConcepTest
... ConcepTest Work and Energy II A golfer making a putt gives the ball an initial velocity of v0, but he has badly misjudged the putt, and the ball only travels one-quarter of the distance to the hole. If the resistance force due to the grass is constant, what speed should he have given the ball (from ...
... ConcepTest Work and Energy II A golfer making a putt gives the ball an initial velocity of v0, but he has badly misjudged the putt, and the ball only travels one-quarter of the distance to the hole. If the resistance force due to the grass is constant, what speed should he have given the ball (from ...
Friction-Lab
... 7. Click the “Start” button and gradually pull on the sensor with an increasing force. Once the block starts moving, it is very important to pull so the block moves with a constant velocity. 8. Click the “Stop” button after pulling the block from one end of the track to the other. 9. Look at your g ...
... 7. Click the “Start” button and gradually pull on the sensor with an increasing force. Once the block starts moving, it is very important to pull so the block moves with a constant velocity. 8. Click the “Stop” button after pulling the block from one end of the track to the other. 9. Look at your g ...
ExamView - Untitled.tst
... 1. What is necessary for an object to accelerate? 2. If two equal forces act on an object in opposite directions, what is the net force? What is the acceleration? 3. Can an object be in motion if the net force acting on it is zero? Explain. 4. A bowling ball loses momentum of 0.5 kg × m/s when it hi ...
... 1. What is necessary for an object to accelerate? 2. If two equal forces act on an object in opposite directions, what is the net force? What is the acceleration? 3. Can an object be in motion if the net force acting on it is zero? Explain. 4. A bowling ball loses momentum of 0.5 kg × m/s when it hi ...
lect wk9 friction
... Weight of W = mg causes the cord to move CCW over the drums at B and C. Max tension T2 in the cord occur at D where T2 = 500N For section of the cord passing over the drum at B 180° = π rad, angle of contact between drum and cord ...
... Weight of W = mg causes the cord to move CCW over the drums at B and C. Max tension T2 in the cord occur at D where T2 = 500N For section of the cord passing over the drum at B 180° = π rad, angle of contact between drum and cord ...
Day 8, Ch 4 Forces
... • The result of friction forces is energy (heat) • Two types of friction: – Static friction force keeps the object at rest, and is needed to be overcome so the object can begin motion. – Kinetic friction occurs when one object is sliding against another surface. ...
... • The result of friction forces is energy (heat) • Two types of friction: – Static friction force keeps the object at rest, and is needed to be overcome so the object can begin motion. – Kinetic friction occurs when one object is sliding against another surface. ...
Dynamics Rewrite Problems 1. A 0.40 kg toy car moves at constant
... 12. The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0.25. The weight of the object is 20N. What is the force of friction? 13. The force of friction between an object and the surface upon which it is sliding is 15 N. The mass of the object is 20.0 kg. ...
... 12. The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0.25. The weight of the object is 20N. What is the force of friction? 13. The force of friction between an object and the surface upon which it is sliding is 15 N. The mass of the object is 20.0 kg. ...
1 - alcdsb
... a. 3.0 m/s2 [W] b. 48 m [W] c. 16 m/s [W] d. 31 m/s [W] e. 260 m [W] f. 360 m [W] The town of Vector is 42.0 km [W] of the city of Scalar. There is a highway that connects the two places. A truck leaves the town of Vector and heads for Scalar. The truck travels at a constant speed of 75.0 km/h. At e ...
... a. 3.0 m/s2 [W] b. 48 m [W] c. 16 m/s [W] d. 31 m/s [W] e. 260 m [W] f. 360 m [W] The town of Vector is 42.0 km [W] of the city of Scalar. There is a highway that connects the two places. A truck leaves the town of Vector and heads for Scalar. The truck travels at a constant speed of 75.0 km/h. At e ...
Contact forces
... Air resistance / Drag When an object moves through air or any other fluid, the fluid exerts a friction-like force on the moving object. The force is called drag. Drag depends upon the speed of the object, becoming larger as the speed increases. (UNLIKE FRICTION!) Drag also depends upon the siz ...
... Air resistance / Drag When an object moves through air or any other fluid, the fluid exerts a friction-like force on the moving object. The force is called drag. Drag depends upon the speed of the object, becoming larger as the speed increases. (UNLIKE FRICTION!) Drag also depends upon the siz ...
Phy 211: General Physics I
... exerted when the object tends to move, but the external force is not yet strong enough to actually move the object. • Increasing the applied force, the static frictional force increases as well (so the net force is zero) . The force just before breakaway is the maximum static frictional force. • The ...
... exerted when the object tends to move, but the external force is not yet strong enough to actually move the object. • Increasing the applied force, the static frictional force increases as well (so the net force is zero) . The force just before breakaway is the maximum static frictional force. • The ...
Ph211_CH6_worksheet
... incline that can be raised from 0o to 90 o (with respect to the horizontal direction). The coefficient of static friction between the block and the platform surface is 0.5. a) As the platform is raised to some angle, , draw the free body diagram for the block as it sits at rest on the incline. 2 kg ...
... incline that can be raised from 0o to 90 o (with respect to the horizontal direction). The coefficient of static friction between the block and the platform surface is 0.5. a) As the platform is raised to some angle, , draw the free body diagram for the block as it sits at rest on the incline. 2 kg ...
Review Problems 4.27
... If potential energy was released to the objects during the collision, the report could be true. If the objects had different masses, the report could be true. If the surface was inclined, the report could be true. If there was no friction between the objects and the surface, the report could be true ...
... If potential energy was released to the objects during the collision, the report could be true. If the objects had different masses, the report could be true. If the surface was inclined, the report could be true. If there was no friction between the objects and the surface, the report could be true ...
Friction
... between objects that are sliding with respect to one another. • Once enough force has been applied to the object to overcome static friction and get the object to move, the friction changes to sliding (or kinetic) friction. • Sliding (kinetic) friction is less than static friction. • If the componen ...
... between objects that are sliding with respect to one another. • Once enough force has been applied to the object to overcome static friction and get the object to move, the friction changes to sliding (or kinetic) friction. • Sliding (kinetic) friction is less than static friction. • If the componen ...
Group problem1. Solution:
... The two cars coalesce, it means that the collision is perfectly inelastic. The kinetic energy is not conserved. The conservation of momentum has to be applied from situation 1 to situation 2, before the collision and just after the collision (just before the 2 cars start skidding). Before applying ...
... The two cars coalesce, it means that the collision is perfectly inelastic. The kinetic energy is not conserved. The conservation of momentum has to be applied from situation 1 to situation 2, before the collision and just after the collision (just before the 2 cars start skidding). Before applying ...
Friction Lab (Anything written in Italic Font should be deleted when
... After clicking on the green “Collect” button, use the DRFS to pull the friction block so that it moves from rest WITH THE LEAST AMOUNT OF FORCE POSSIBLE. After allowing the block to come to rest, again pull on the friction block with the DRFS so that it moves with the least amount of force possible. ...
... After clicking on the green “Collect” button, use the DRFS to pull the friction block so that it moves from rest WITH THE LEAST AMOUNT OF FORCE POSSIBLE. After allowing the block to come to rest, again pull on the friction block with the DRFS so that it moves with the least amount of force possible. ...