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An apple falls out of a tree and takes 1.75 seconds to strike the ground. How high was the apple from the ground?
Wiki User
∙ 7y ago
s = ut + ½at²
s = distance = height of apple before it fell
u = 0 m/s (initial speed of apple)
t = 1.75 s (time of movement)
a = acceleration = g (acceleration due to gravity)
→ s = ½g1.75² = 1.53125g m
taking g as approx 9.81 m/s²
s ≈ 1.53125 × 9.81 m ≈ 15 m
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoIt was 15 metres high.
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