An electric lift with a maximum load of $2000kg$ (lift + passengers) is moving up with a constant speed of $1.5{ms}^{-1}$. The frictional force opposing the motion is $3000N$. The minimum power delivered by the motor to the lift in watts is: $(g=10{ms}^{-2})$

1. $34500$
2. $23000$
3. $20000$
4. $23500$

Q. An elevator can carry a maximum load of $1800kg(elevator+passengers)$ is moving up with a constant speed of $2m{s}^{-1}$. The frictional force opposing the motion is $4000N$. What is minimum power delivered by the motor to the elevator?

Q. An elevator can carry a maximum load of 1800 kg (elevator + passengers ) is moving up with a constant speed of 2 m/s. The frictional force opposing the motion is 400 N. Determine the minimum power delivered by

Q. An elevator which can carry a maximum load of 1800kg (elevator+passengers)is moving up with a constant speed of 2m/s. The frictional force opposing the motion is 4000N. Determine the minimum power delivered by the motor to the elevator in watt and horsepower .

Q. Sumesh went to Big Bazaar to purchase certain goods. There he has noticed an old lady struggling to carry the goods from one floor to the next. Then Sumesh took her to the lift and showed her how to operate it. The old lady was very happy.

a) What values Sumesh posses?
b) An elevator can carry a maximum load of 1800 kg is moving up with a constant speed of 2 m/s, the frictional force opposing the motion is 4000 N. Determine the minimum power delivered by motor to the elevator in Watts.