Question

A ball rolls off the top of a stair case hori-
zontally. If each step has height h and
width x and the ball just the n'h step, initial
velocity of the ball is​

Answer 1

Explanation:

..if in this case initiall velocity is 1.5 m/s and ...height of stair is 20cm and width is also 20cm then find out which stair the ball hits first ....try this also