Question

two particles a and b are projected vertically upwards from horizontal ground at the same time. the speeds of projection of a and b are 5 m/s and 8 m/s respectively. find (i) the difference in the height of a and b, where a is at its maximum height and (ii) the height of a above the ground, when b is 0.9 m above a.

Answer 1

1) Difference of their heights at maximum height is 3

2) The height above the ground when B is 0.9 m above a is 1 m