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12-11-2019
Physics

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A piece of metal has attained a velocity of 107.8 m/sec after fallinf for 10 seconds what is its initial velocity

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Hania12 Hania12

15-11-2019

Answer:

7.8 m/s

Explanation:

Here object is falling with a gravitational acceleration there for we can take acceleration = 10 m/ s² and its constant through out the motion there for we can use motion equation

V = U + at

V - Final velocity

U - Initial velocity

a - acceleration

t - time

V=U+at

107.8=U + 10×10

= 7.8 m/s

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