Question

When work is done on a body by an external force is?

Answer 1

Answer:

work is done on a body by an external force when the body displaces

Explanation:

A body is said to be doing a work when there is an external force acting on the body the body displaces,

Here the frictional force is negligiable or neglated to find actual work done

Thanks!

Answer 2

Answer:

m1 = 2kg

m2= 3kg

Now,

T= (2m1 × m2 / m1 × m2 )g

= (2 ×2 ×3/ 2+3 )g

= 12/5 g

a = (m2 - m1 / m1+ m2) g

= (3-2/3+2)g

= g/5

Explanation: