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A ball is thrown vertically upwards with...

A ball is thrown vertically upwards with a velocity of `20 ms^(-1)` from the top of a multistorey building. The height of the point from where the ball is thrown is 25.0 m from the ground. (a) How high will the ball rise ? and (b) how long will it be before the ball hits the ground ? Take `g = 10 ms^(-2)`.

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To solve the problem step by step, we will break it down into two parts: (a) finding how high the ball will rise and (b) determining how long it will take for the ball to hit the ground. ### Part (a): How high will the ball rise? 1. **Identify the given values:** - Initial velocity (u) = 20 m/s (upwards) - Final velocity (v) = 0 m/s (at the highest point) - Acceleration (a) = -g = -10 m/s² (due to gravity acting downwards) ...
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