Question

hey guys i wanna quick solution with full explanation if dont know no need to answer ​

Answer 1

Explanation:

The pull of a moving raliway engine on its coaches. because there should be a motion of the body in the direction of the force applied .

hope it helps you｡◕‿◕｡

Answer 2

option A is correct....... because in other cases there is no displacement..so work done is zero