Question

An elevator which can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a

constant speed of 2 ms – 1

. The frictional force opposing the motion is 4000 N. Determine the minimum

power delivered by the motor to the elevator in watt and in horsepower.​

Answer 1

Answer:

Given, the maximum load the elevator can carry isML=1800kg. We know that frictional force always opposes relative motion. So, when the elevator is moving up the frictional force is in downward direction.