Introduction Worksheet 1
... A man pushes a 40 kg box from rest along a horizontal floor by exerting a force of 113 N horizontally. The friction force acting is 50 N. Calculate: a) the unbalanced force. e) the Ek gained by the box in 2.0 s. b) the acceleration of the box. f) the energy lost as heat. c) the speed after 2.0 s. g) ...
... A man pushes a 40 kg box from rest along a horizontal floor by exerting a force of 113 N horizontally. The friction force acting is 50 N. Calculate: a) the unbalanced force. e) the Ek gained by the box in 2.0 s. b) the acceleration of the box. f) the energy lost as heat. c) the speed after 2.0 s. g) ...
F HGIKJ F HGIKJ c h b g b g
... The centripetal force always points toward the center of the circle. It is not a new force - it is made up of forces with which you are already familiar such as weight, gravity, tension, and friction. Thus, whenever an object moves in a circle there is a centripetal force with magnitude v2 m pointin ...
... The centripetal force always points toward the center of the circle. It is not a new force - it is made up of forces with which you are already familiar such as weight, gravity, tension, and friction. Thus, whenever an object moves in a circle there is a centripetal force with magnitude v2 m pointin ...
Forces
... Force and Net Force • Force is a push or a pull on an object. • Net force is the total force on an object. ...
... Force and Net Force • Force is a push or a pull on an object. • Net force is the total force on an object. ...
Friction - WordPress.com
... • Friction opposes motion between two surfaces in contact. • A non-zero resultant frictional force will cause a moving object to slow down to a complete stop. • There are both positive and negative effects of friction in our daily lives. ...
... • Friction opposes motion between two surfaces in contact. • A non-zero resultant frictional force will cause a moving object to slow down to a complete stop. • There are both positive and negative effects of friction in our daily lives. ...
Friction, Circular Motion, Drag Forces 5
... Ffr = μkFN . Here, FN is the normal force, and μk is the coefficient of kinetic friction, which is different for each pair of surfaces. ...
... Ffr = μkFN . Here, FN is the normal force, and μk is the coefficient of kinetic friction, which is different for each pair of surfaces. ...
Weight is expressed in A push or a pull Force exerted when only
... Opposes the motion of objects sliding past each other ...
... Opposes the motion of objects sliding past each other ...
Friction is the force that two surfaces exert on each other when they
... •On Earth, gravity acts as a downward force. •It affects ALL objects on and outside the Earth •So the book you hold coming to class is affected by gravity. •As you hold it, you balance the force of gravity and the book stays put, •But, if you let go, the forces become unbalanced and the book drops d ...
... •On Earth, gravity acts as a downward force. •It affects ALL objects on and outside the Earth •So the book you hold coming to class is affected by gravity. •As you hold it, you balance the force of gravity and the book stays put, •But, if you let go, the forces become unbalanced and the book drops d ...
Sliding Friction
... still. As they’re sitting, the grooves and bumps have already interlocked. If you try to get an object to start moving, you have to use a certain amount of force to break the objects out from their interlocked state. This usually results in a sudden jerk as movement starts. Once the objects are movi ...
... still. As they’re sitting, the grooves and bumps have already interlocked. If you try to get an object to start moving, you have to use a certain amount of force to break the objects out from their interlocked state. This usually results in a sudden jerk as movement starts. Once the objects are movi ...
Physics Unit Review
... How are mass and inertia related? They are both properties of matter and do not change no matter where the object is. Write Newton’s Second Law. F = ma Force = mass x acceleration How does Newton’s second law explain why it is easier to push a bicycle than to push a car with the same acceleration? W ...
... How are mass and inertia related? They are both properties of matter and do not change no matter where the object is. Write Newton’s Second Law. F = ma Force = mass x acceleration How does Newton’s second law explain why it is easier to push a bicycle than to push a car with the same acceleration? W ...
Normal Force
... 1st Law: A body acted on by no net force moves with constant velocity (which may be zero) ...
... 1st Law: A body acted on by no net force moves with constant velocity (which may be zero) ...
What force powers Roller coasters? Why do you experience free fall?
... Riders move out from the center ...
... Riders move out from the center ...
Ethan Frome
... e) 55 mph Answer b. Speed is distance/time. Distant is 90 miles. Time is 2.5 hours. 6. A 50kg suitcase is lying at rest on a horizontal floor. The coefficient of static friction between the suitcase and the floor is 0.90 and the coefficient of kinetic friction is 0.70. You push on the suitcase with ...
... e) 55 mph Answer b. Speed is distance/time. Distant is 90 miles. Time is 2.5 hours. 6. A 50kg suitcase is lying at rest on a horizontal floor. The coefficient of static friction between the suitcase and the floor is 0.90 and the coefficient of kinetic friction is 0.70. You push on the suitcase with ...
Chapter 4 Motion
... 5. When a boy lands on a trampoline, he pushes the trampoline. What is the reaction force? A. gravity pulling the boy down B. the boy pushing down C. the friction between the boy and the trampoline D. the trampoline pushing upward 6. The diagram shows a force acting on an object. What is the directi ...
... 5. When a boy lands on a trampoline, he pushes the trampoline. What is the reaction force? A. gravity pulling the boy down B. the boy pushing down C. the friction between the boy and the trampoline D. the trampoline pushing upward 6. The diagram shows a force acting on an object. What is the directi ...
Forces Review Worksheet
... b. A hovercraft has a mass of 75 kg. How much force is required to keep it off the ground? ...
... b. A hovercraft has a mass of 75 kg. How much force is required to keep it off the ground? ...
Powerpoint
... Can determine acceleration along with other forces 2 types static and kinetic, once object starts moving crosses from Ffs to Ffk / also rotational/rolling Friction is smallest friction Caused by electron repulsion between two objects - Friction opposes (in opposite direction of) applied force - Dire ...
... Can determine acceleration along with other forces 2 types static and kinetic, once object starts moving crosses from Ffs to Ffk / also rotational/rolling Friction is smallest friction Caused by electron repulsion between two objects - Friction opposes (in opposite direction of) applied force - Dire ...