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14-03-2021
Chemistry

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A child drops a ball from a bridge. The ball strikes the water under the bridge 2.0s later. What is the velocity of the ball when it hits the water

Respuesta :

14-03-2021

Answer:

20m/s

Explanation:

Given that :

Time, t = 2 seconds

Using the relation :

v = u + at

a = g is positive (downward)

V = final velocity

u = initial velocity = 0

v = u + gt

v = 0 + 10(2)

v = 20 m/s

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