A ball is thrown vertically upwards from the top of a building of height 24.5 m with an initial velocity 19.6 m`s^(-1)`. Taking g = 9.8 ms, calculate : the velocity with which it will strike the ground .

Explanation

To solve the problem of finding the velocity with which the ball will strike the ground, we can use the kinematic equation:

\[ v^2 = u^2 + 2as \]

Where:
- \( v \) = final velocity (velocity with which it strikes the ground)
- \( u \) = initial velocity (velocity with which the ball is thrown upwards)
- \( a \) = acceleration (acceleration due to gravity)
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