Question

A constant force is applied on a block as shown in the figure initially spring is relaxed and block is at rest, maximum speed of the block in consequent motion is V. If spring is replaced by another spring of spring constant 4k then maximum speed a block will be :

(A) V/4

(B) 2V

(C) V/2

(D) V

Answer 1

Correct option (C) V/2

Explanation:

By work energy theorum;