Question

A 5kg rock is lifted 2m. Find the amount of work done.

Answer 1

$\huge\underline\mathfrak\pink{Answer}$

Mass of rock = 5kg

Height = 2m

Unknown:

Work done = ?

Solution:

The amount of work done is given as:

Work done = Force x distance

Work done Weight x height

Work done = mgH

Now insert the parameters and solve;

Work done = 5 x 9.8 x 2 = 98J