Question

A ramp is used to load furniture onto a moving truck. The person does 1240 J of work pushing

the furniture up the ramp, and the ramp does 822 J of work. Calculate the efficiency of the
ramp.

Answer 1

Answer: 66.29%

Step-by-step explanation:

Efficiency = work output / work input x 100 %

Work output = 822J

Work input = 1240 L

E = 822/1240 x 100

E = 0.6629 x 100

E = 66.29%