Work, Energy, and Power
A bicycle has a mass of 10 kg and is moving at a speed of 5 m/s. What is the kinetic energy of the bicycle?
Kinetic energy is a ______ quantity, meaning it has only magnitude and no direction.
A ball is thrown with a velocity of 10 m/s by a person standing still. What is the kinetic energy of the ball from the person's frame of reference if the ball has a mass of 0.5 kg?
If the velocity of a moving object is tripled, how does its kinetic energy change?
An object has a kinetic energy of 100 J and a velocity of 5 m/s. What is its mass?
Two objects, A and B, are moving. Object A has a mass of 2 kg and a velocity of 3 m/s. Object B has a mass of 4 kg. What velocity must object B have in order to possess the same kinetic energy as object A?
A car accelerates from rest to a velocity of 20 m/s over a distance of 100 m. If the car has a mass of 1000 kg, what is its kinetic energy at the end of the 100 m?
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A 2 kg object moving at 5 m/s collides with a stationary 1 kg object. After the collision, the 2 kg object moves at 2 m/s in the same direction. What is the kinetic energy of the 1 kg object after the collision?
Why is kinetic energy always a positive value?
Two cars are moving in opposite directions. Car A has a mass of 1000 kg and is moving east at 20 m/s, while Car B has a mass of 1500 kg and is moving west at 10 m/s. What is the total kinetic energy of the system?