Question

An object is projected upward with a velocity of 100m/s. It will strike the ground in approximately a) 10s b) 20s c)15s

Answer 1

Heya.........

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QUESTION
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An object is projected upward with a velocity of 100m/s. It will strike the ground in approximately a) 10s b) 20s c)15s ?

ANSWER
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According to the question
V=u+at
100-10t

=10 t

It can strike the ground = 2X10 = 20 s

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Hope it helps
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