Q.6 Define speed and average speed.
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Answer:
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion
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Explanation:
Speed :
It is the distance covered by time .
Average speed :
The total distance travelled by a body in a total time is called as average speed.
➥ Average speed is denoted by Av
➥ Average speed is a scalar magnitude.
➥ Its SI Unit is m/s.
➥ The body always have the average speed greater than zero.
Average velocity > 0.
➥ It is called as the total distance by the total time.
Average speed = Total time / Total distance
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