# A machine having an efficiency of 70% lifts a 5.0 kg object 10.0 m. Answer the following. ?

a. What is the weight of the object

b. What is the Work output?

c. What is the Work input?

d. How much work was expended is overcoming friction?

### 1 Answer

Relevance

- Anonymous2 months agoFavourite answer
Weight = m * g

Work output = m * g * h

Work input = work output / 0.7

Work input * 0.3

Still have questions? Get answers by asking now.

what would be h?