Question

what is the efficiency of a ramp if 2,000 joules of energy results in 1,200 joules of work

A. 24 percent
B. 80 percent
C. 60 percent
D. 32 percent

Answer 1

B. 60 percent

Efficiency = (Output/Input) x 100
Efficiency = (1200/2000) x 100
Efficiency = 0.6 x 100
Efficiency = 60 percent