A bullet shot straight up returns to its starting point in 10 s. Its initial speed was

Name: A bullet shot straight up returns to its starting point in 10 s. Its initial speed was
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The bullet takes 5 seconds to reach its peak (half of the total time since the motion is symmetrical), and using the formula $v = gt$ where $g = 9.8 \, m/s^2$ (acceleration due to gravity) and $t = 5 \, s$, we find $v = 9.8 \times 5 = 49 \, m/s$.

A Bullet Shot Straight Up Returns to Its Starting Point