Question

What work is done by a forklift raising a 574 kg crate to a height of 1.3m in a time of 2.0 seconds?

Answer 1

Answer: $7312.76\ J$

Explanation:

Given

Mass of crate is m=574 kg

The crate is raised up to a height of 1.3 m

time taken t=2 s

Work done to raise the crate is equal to the change in its potential energy

$\Rightarrow \text{Work done W=}mgh\\\Rightarrow W=574\times 9.8\times 1.3\\\Rightarrow W=7312.76\ J$