A projectile is fired horizontally from a cliff 80 m high with speed 30 m/s. How long does it take to hit the ground? (Take $g = 10$ m/s²)
Solution
$h = \frac{1}{2} g t^2 \Rightarrow 80 = 5 t^2 \Rightarrow t = 4$ s
About this question
Subject: Physics · Chapter: Kinematics · Topic: Projectile Motion
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