Motion of a particle is described by x = (t – 2)2 Find its velocity when it passes through origin.
(A) 0 m/*
(B) 2 ms–1
(C) 4 ms–1
(D) 8 ms–1
Correct option: (A) 0 m/s
Explanation:
x = (t – 2)2
(dx / dt) = V = 2(t – 2)
at origin x = 0, t – 2 = 0 hence t = 2
V = 2(2 – 0) = 0 m/*
