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velocity of a particle varies with time as v=t^2-t-2. average speed of the particle in time interval from t=0 to t=4sec?
velocity of a particle varies with time as v=t^2-t-2. average speed of the particle in time interval from t=0 to t=4sec?


3 years ago

Eshan
2095 Points
							Dear student,For average speed we need to know the total distance travelled by particle in 4 seconds.velocity of body is zero at t=2 seconds and the velocity reverses its direction.Distance travelled upto 2 seconds=Distance travelled from t=2 to t=4 =Hence total distance travelled by body=Hence average speed=3m/s

2 years ago
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