An elevator of mass M with a person of mass m is moving upward with uniform velocity `vecv`. What is the power delivered by the elevator?

A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 m s^-1 . It hits the floor of the elevator (length of the elevator = 3 m) and does not rebound. What is the heat produced by the impact ? Would your answer be different if the elevator were stationary ?

A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 m s^-1 . It hits the floor of the elevator (length of the elevator = 3 m) and does not- rebound. What is the heat produced by the impact? Would your answer be different if the elevator were stationary?

A block of mass m is suspended by a light thread from an elevator. The elevator starting from rest is accelerating upward with uniform acceleratio a. The work done by tension on the block during t seconds is

A bob of mass 0.3 kg falls from the ceiling of an elevator moving down with a uniform speed of 7ms^(-1) . If hits the floor of the elevator (length of the elevator = 3m) and does not rebound. What is the heat produced by the impact ? Would your answer be different if the elevator were stationary ?

A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 ms^(-1) . It hits the floor of the elevator (length of the elevator = 3m) and does not rebound. What is the heat produced by the impact? Would your answer be different if the elevator were stationary?

A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 ms^(-1) . It hits the floor of the elevator (length of the elevator = 3m) and does not rebound. What is the heat produced by the impact? Would your answer be different if the elevator were stationary?