Question

Two particles A and B move on a straight line. A moves with constant positive velocity. B moves with constant positive acceleration. At t=0 A and B are moving equally fast. Which of the following is possible

(a) The distance between then keeps increasing
(b) The distance between then first decreases and then increases (c) The distance between then first increases, then
decrease and finally keeps increasing
(d) The distance between then first decreases, then increases, then decreases and finally keeps increasing​

Answer 1

Answer: a) the distance between them keeps increasing

Because Particle B is positively accelerated so its velocity continuously increase and velocity of A is constant so