12. Work Power & Energy
... Friction always acts opposite to the displacement. Hence answer is (b). ...
... Friction always acts opposite to the displacement. Hence answer is (b). ...
Final 1
... 17. A 10 kg sphere is glued to a massless stick that is tangent to it and then spun about the axis formed by the stick. What is the sphere's rotational inertia I about this axis, if its radius is 0.2 m ? The rotational inertia of a sphere about its center is Icm = 2/5 MR2 . A. 0. 24 kg.m2 B. 0.56 kg ...
... 17. A 10 kg sphere is glued to a massless stick that is tangent to it and then spun about the axis formed by the stick. What is the sphere's rotational inertia I about this axis, if its radius is 0.2 m ? The rotational inertia of a sphere about its center is Icm = 2/5 MR2 . A. 0. 24 kg.m2 B. 0.56 kg ...
Learning Outcomes - Unit 1
... I am confident that I understand this and I can apply this to problems I have some understanding but I need to revise this some more I don’t know this or I need help because I don’t understand it ...
... I am confident that I understand this and I can apply this to problems I have some understanding but I need to revise this some more I don’t know this or I need help because I don’t understand it ...
Summary of Chapters 1-3 Equations of motion for a uniformly acclerating object
... When a net external force acts on an object of mass m, the acceleration that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass. The direction of the acceleration is the same as the direction of the net force. ...
... When a net external force acts on an object of mass m, the acceleration that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass. The direction of the acceleration is the same as the direction of the net force. ...
Work, Energy, and Machines
... Work is done when a force is applied to an object and MAKES IT MOVE Work done to a machine = work input Fore you apply to a machine through a distance = input force Work done by a machine on an object = work output Force a machine exerts on an object = output force ...
... Work is done when a force is applied to an object and MAKES IT MOVE Work done to a machine = work input Fore you apply to a machine through a distance = input force Work done by a machine on an object = work output Force a machine exerts on an object = output force ...
Energy worksheet
... 4. A 25 kg ball is thrown into the air. When thrown it is going 10. m/s. Calculate how high it travels. 5. A 3.0 kg rock sits on a 0.80 meter ledge. If it is pushed off, how fast will it be going at the bottom? 6. A catcher's mitt recoils a distance of 12.9 cm in bringing a 142-gram baseball to a st ...
... 4. A 25 kg ball is thrown into the air. When thrown it is going 10. m/s. Calculate how high it travels. 5. A 3.0 kg rock sits on a 0.80 meter ledge. If it is pushed off, how fast will it be going at the bottom? 6. A catcher's mitt recoils a distance of 12.9 cm in bringing a 142-gram baseball to a st ...
Example - mrdsample
... equilibrium: Points of equilibrium are where the force is zero (slope = zero). x3 and x5 are points of stable equilibrium or energy wells. If the system is slightly displaced to either side the forces on either side will return the object back to these positions. x6 is a position of neutral equilibr ...
... equilibrium: Points of equilibrium are where the force is zero (slope = zero). x3 and x5 are points of stable equilibrium or energy wells. If the system is slightly displaced to either side the forces on either side will return the object back to these positions. x6 is a position of neutral equilibr ...
Force and Motion
... Lamont wants to move a 4,800 gram box from the floor to a shelf directly above the box. It takes Lamont 8 seconds to move the box to a shelf that is 0.4 meters from the ground. It takes 12 seconds to move the box to a shelf that is 1.2 meters off the ground. How much more work in joules is required ...
... Lamont wants to move a 4,800 gram box from the floor to a shelf directly above the box. It takes Lamont 8 seconds to move the box to a shelf that is 0.4 meters from the ground. It takes 12 seconds to move the box to a shelf that is 1.2 meters off the ground. How much more work in joules is required ...
Projectile Motion y(final)≠0
... and mC=10.kg. What is the tension is the rope at the right? What is the acceleration of block B? ...
... and mC=10.kg. What is the tension is the rope at the right? What is the acceleration of block B? ...
Newton`s First Law of Motion
... the bus as the bus starts to move, your body wants to stay at rest because of inertia, so you might fall towards the back of the bus once the bus reaches a constant velocity, you have no trouble standing because you are also moving with a constant velocity if the bus slows or stops unexpectedly ...
... the bus as the bus starts to move, your body wants to stay at rest because of inertia, so you might fall towards the back of the bus once the bus reaches a constant velocity, you have no trouble standing because you are also moving with a constant velocity if the bus slows or stops unexpectedly ...
Unit 1 - CElliott
... 1. Inertia – Objects at rest tend to stay at rest and objects in motion tend to stay in motion at a constant v and in a straight line – UNLESS acted on by an unbalanced (net) force. 2. F=ma – If there is a “net” force acting on an object the object will… - accelerate in direction of net force - a α ...
... 1. Inertia – Objects at rest tend to stay at rest and objects in motion tend to stay in motion at a constant v and in a straight line – UNLESS acted on by an unbalanced (net) force. 2. F=ma – If there is a “net” force acting on an object the object will… - accelerate in direction of net force - a α ...
Lect-10
... From the frame of the passenger (b), a force appears to push her toward the door From the frame of the Earth, the car applies a leftward force on the passenger The outward force is often called a centrifugal force ...
... From the frame of the passenger (b), a force appears to push her toward the door From the frame of the Earth, the car applies a leftward force on the passenger The outward force is often called a centrifugal force ...
Momentum
... During a collision between two or more objects, large forces can act for small time periods. By Newton’s third law, the force that object 1 exerts on object 2 is equal and opposite to the force that object 2 exerts on object 1. Thus, the impulse received by object 2 is equal and opposite to the impu ...
... During a collision between two or more objects, large forces can act for small time periods. By Newton’s third law, the force that object 1 exerts on object 2 is equal and opposite to the force that object 2 exerts on object 1. Thus, the impulse received by object 2 is equal and opposite to the impu ...
Hunting oscillation
Hunting oscillation is a self-oscillation, usually unwanted, about an equilibrium. The expression came into use in the 19th century and describes how a system ""hunts"" for equilibrium. The expression is used to describe phenomena in such diverse fields as electronics, aviation, biology, and railway engineering.