A ball rolls horizontally off the top of a stairway with a speed of 1.5m/s. The steps are 20cm high and 20cm wide. Initially the ball hits
1. Second step
2. Third step
3. Fifth step
4. Sixth step

Asked by Mamali Nanda | 21st Jul, 2016, 10:13: PM

Expert Answer:

Answered by Romal Bhansali | 22nd Jul, 2016, 12:52: PM