4. A stone is thrown vertically upwaed with a
velocity of 20 m/s. If there is no
resistance
then calculate:
(a) the maximum height reached by stone
(b) tolal time taken by store to return to it
original position
Answers
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1
Answer:
Explanation
max height=u²÷2g
=400÷2×10
=20 metres
total time=2u÷g
=2×20÷10
=4 sec
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