Question

A total of 1,033 J of work is needed to lift a body of unknown mass through a height of 64 m. What is its mass? Round your intermediate step to one decimal place and the final answer to the nearest integer.

Answer 1

Answer:

m = 1.64 kg

Explanation:

Given that,

The work done to lift a body, W = 1,033 J

Height, h = 64 m

We need to find its mass. The work done in lifting the mass is given by :

$W=mgh\\\\m=\dfrac{W}{gh}\\\\m=\dfrac{1033 }{9.8\times 64}\\\\m=1.64\ kg$

Hence, the mass of the body is 1.64 kg.