Question

You do 150J of work pushing a box up a ramp. If the ramp does 105J of work, what is the efficiency of the ramp

Answer 1

The answer is 70%.

Explanation:

The total amount of work is 150J, and the amount of work that the ramp did is 105J, which means that the fraction is 105/150.

105/150 = 0.7

0.7 in percentage form is 70% because 0.7 x 100 = 70.

I hope this helps!