Problem 36P

A forklift raises a 90.5 kg crate 1.80 m. (a) Showing all your work and using unity conversion ratios, calculate the work done by the forklift on the crane, in units of kJ. (b) If it takes 12.3 seconds to lift the crate, calculate the useful power supplied to the crate in kilowatts.

Part (a)

Step 1:

To calculate the work done by the forklift on the crane using unity conversion ratios

Mass of the crate m = 90.5 kg

Height h = 1.80 m

Acceleration due to gravity g = 9.81 m/s2