A stone is projected vertically up with an initial velocity U. It returns to the ground after 10 sec. Find (i) U (ii) maximum height reached (iii) time taken to reach the maximum height and (iv) speed with which it hits the ground.
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Explanation:
time taken to reach the maximum height is 10s
explanation
v = u + at
0 = 100 + -10*t
10*t =100
t =100/10
t = 10s
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