A small ball of mass m starts at a point A with speed vo and moves along a friction less track AB as shown. The track BC has coefficient of friction μ . The ball comes to stop at C after travelling a distance L which is:
Correct option: (b)
Explanation:
Initial speed at point A, u = v 0 Speed at point B, v = ?
v2 – u2 = 2gh
v2 = v20 + 2gh
Let ball travels distance ‘*’ before coming to rest
