Question

Find the percentage of the total work lost to friction if 28.7 J of work is put into pushing a block up a ramp resulting in 14.2 J of stored potential energy at the top.

Answer 1

14.5 joules

50.5 %

Step-by-step explanation:

Energy initial +work= energy final

28.7 + work = 14.2

friction did - 14.5 joules of work so percantage of work lost is just 14.5/28.7 *100 or 50.5 %