Question

a boy kicks the football of mass 500 grams which is initially at rest it starts moving with a constant velocity of 5 metre per second calculate the work done by the boy ​

Answer 1

Explanation:

s= 5 m

m= 500 g

a= 5m/s²

f= 5000

work done

w= acceleration* force

= 5* 5000

= 25000J

Answer 2

Answer:

Here question clearly mention that ball is moving with constant velocity, it means that acceleration of the body is Zero. Therefore net force on body is zero as F = ma.

It also means that work done is zero as W= F.S