A small cart A starts moving on a horizontal surface, assumed to be x-y plane along a straight
Channel: Doubtnut
Date: 16/02/2020

A small cart A starts moving on a horizontal surface, assumed to be x-y plane along a straight line parallel to x-axis (see figure) with a constant acceleration of `4 m//s^(2)`. Initially it is located on the positive y-axis at a distance 9 m from origin. At the instant the cart starts moving, a ball is rolled along the surface from the origin in a direction making an angle `45�` with the x-axis. The ball moves without friction at a constant velocity and hits the cart. (a) Describe the path of the ball in a reference frame attached to the cart. (b) Find the speed of the ball.