if a body chane velocity from 20m/sec in 30m/sec find velocity
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Answered by
1
Answer:
According to the given problem,
A body changes its velocity from 20m/s to 30 m/s in 2 seconds.
Let A & D denote respectively (the acceleration) & (distance covered).
We have the following kinematic relations,
30 = 20 + 2*A ….. (1a) [v = u + a*t]
D = 20*2 + (1/2)*A*2^2 ….. (1b) [s = u*t + (1/2)*a*t^2]
Answered by
0
Answer:
Average velocity = 25 m/ sec
Explanation:
Average velocity=Initial velocity+Final Velocity/2
= 20 m/s + 30 m/s /2
= 25 m/s
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