stone is dropped freely in a river and takes 5 seconds to touch the water surface find height from which stone is dropped and distance covered by the stone in2 seconds answers are=h=22.5m and distance=19.6m
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Find Height using S=ut + 1/2 a t^2 :
h = 1/2 x 9.8 x (5x5)
= 122.5m
Distance covered in 2 seconds:
S = 1/2 x 9.8 x (2x2)
= 19.6m
gagandeep58:
answer is not right
height
It is right, buddy. Think about it. If a freely falling particle can travel a distance of 19.6 meters in just 2 seconds, there is no way (without any resisting force) that it can travel just 22.5 meters in a total of 5 seconds with an acceleration of 9.2m/s^2 .
9.8m/s^2 **
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