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A ball is thrown from a roof top at angl...

A ball is thrown from a roof top at angle of ` 40^(@)`above the horizontal. It hits the ground a few seconds later. At what point during its motion. Does the ball have
(a) greatest speed (b) smallest speed (c ) greatest acceleration ? Explain.

Text Solution

Verified by Experts

From the given figure , we find the following :
(a0 Greatest speed of ball is at B, just before it hits the ground .
(b) Smallest speed of ball is at point A(the highest point of trajectory) .
(c) Acceleration , a=g=constant at all the points .
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