Question

The work done in holding a weight of 40N at a height of 3m above the floor for 2s is in joules

Answer 1

W=fs
=40×3
=120j
And
P=w/t
P=120/2
P=60w

Answer 2

Answer:

Work done, W = 120 joules

Explanation:

It is given that,

Weight of the object, F = 40 N

Height, h = 3 m

Time, t = 2 s

The work done is equal to the product of force and the distance covered. Here, it is given by :

$W=F\times h$

$W=40\ N\times 3\ m$    

W = 120 joules

So, the work done in holding the weight of the object is 120 joules. Hence, this is the required solution.