Question

68. A force of 5 N, making an angle o with the horizontal, acting on an object displaces it by
0.4m along the horizontal direction. If the object gains kinetic energy of 1J, the horizontal
component of the force is
(a)1.5 N
(b) 2.5 N
(c)3.5N
(d)4.5N​

Answer 1

Answer:

(b) 2.5 N

Explanation:

W = ∆KE

let the component of the force = F

F.S = ∆KE

=> F = 1 / 0.4 = 10/4 = 2.5 N