Problem 7-83 Power - B

A \(2.65-kW\) motor is used to lift crates vertically upward in a factory. What is the maximum speed at which a crate of mass \(147\; kg\) can be lifted by this motor? Assume that all the motor's power goes into lifting. (Hint: determine the height that the crate can be lifted in \(1.00\; s\).) [Ans. \(1.84\; m/s\)]


\(P = 2.65\times 10^3\; W\)

The relationship between Power and Energy is:

(A)   \(P = E/t\)

(B)   \(P = Et\)

(C)   \(E = P/t\)