Question

A ball of mass 400g has acceleration 2m/s2. how much work is done in moving it by 200m.

Answer 1

Answer:

Given : m= 400g, m= 400×10^-3= 0.4kg

a=2m/s2 &

d=200m

so, we have,

formula for work done is given by,

W= f × d

we have,

F= m × a

F= 0.4×2

F= 0.8N

So,

W= f×d

W= 0.8×200

W=160J

The workdone is 160J