A body is vertically upwards. If `t_(1)` and `t_(2)` are the times at which it is height h above the point of projection while ascending and descending, respectively, find (a) the velocity of projection and height h, (b) the maximum height reached by the body and (c ) the velocity of the body at height `h//2`.

Explanation

To solve the problem step by step, we will break it down into three parts as requested:

### Part (a): Finding the velocity of projection (u) and height (h)

1. **Understanding the times**:
- Let \( t_1 \) be the time when the body is at height \( h \) while ascending.
- Let \( t_2 \) be the time when the body is at height \( h \) while descending.

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