Question

umerical Problems
Numerical
A ball starts mo
starts moving with an acceleration of 4 m/s2. Find out its speed after 4 seconds.
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Answer 1

Answer:

A ball starts moving with an acceleration of 4m/s2. What is the speed after 4 seconds?

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Assuming constant acceleration,

Velocity will vary linearly , by definition of acceleration;a = change in velocity / time

Or we can say ; change in velocity = acceleration× time

Final velocity - initial velocity = 4×4=16 m/s

( Since ball start with an acceleration of 4m/s2 , so initial velocity is assumed zero )

Final velocity= 16 m/s

Speed after 4 second will be 16m/s

Answer 2

Answer:

SPEED AFTER 4 SECONDS WILL BE

16m/s

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