A ball is thrown vertically upward with an initial speed of $20\ \text{m s}^{-1}$. Ignoring air resistance, (a) calculate the maximum height reached, and (b) determine the total time taken for the ball to return to the thrower's hand. Take $g = 9.8\ \text{m s}^{-2}$.

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Maximum height = 20.4 m; total time = 4.08 s

Neco Model Questions Vol1 2021 Physics Question 8

A ball is thrown vertically upward with an initial speed of \(20\ \text{m s}^{-1}\). Ignoring air resistance, (a) calculate the maximum height reached, and (b) determine the total time taken for the ball to return to the thrower's hand. Take \(g = 9.8\ \text{m s}^{-2}\).

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