Question

Question 4 of 25

Trevor used a ramp to get a box into a truck. His input work was 700 J and
the output work was 400 J. What was the mechanical efficiency of using the
ramp?
A. 175%
OB. 57.1%
C. 100%
D. 42.8%
SUBMIT

Answer 1

Answer: B, 57.1%

Explanation: 400 divided by 700 = .571 (roughly), which is 57.1%