a body is thrown up with a velocity of 20 metre per second.It retards uniformly at the rate of 10 metre per second square find the velocity of the body after 2 seconds.
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Initial velocity (u) = 20 m/s
Acceleration (a) = - 10 m/s2
Time (t) = 2 seconds
Final velocity (v) = ?
We know, v = u + at
or, v = 20 + ( - 10) X 2 or, v = 0 m/s
Therefore, the final velocity (v) is 0 m/s.
Acceleration (a) = - 10 m/s2
Time (t) = 2 seconds
Final velocity (v) = ?
We know, v = u + at
or, v = 20 + ( - 10) X 2 or, v = 0 m/s
Therefore, the final velocity (v) is 0 m/s.
Answered by
2
Answer:
v = u + at
v= 20 +(- 10)×2
v = 20- 20
v= 0m/s
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