(a) list two differences into in tabular form between speed and velocity (b) when is an object said to have (1). uniform vilocity ( 2.) variable vilocity (c) how is average velovity of an object calculated when its velocity changes at a non uniform motion rate
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Answer:
speed: 1.it is a scalar quantity .
2.if displacement is zero it is not equal to zero if a body cover some distance.
Velocity: 1.it is a vector quantity.
2.if displacement is zero it must be equal to zero.
bintulHuda:
to find average velocity you can get your answer by dividing total distance by total time.
if distance are equal you can apply formula. 2(v1 v2 )÷(v1+v2)
if t1 is equal to t2 you can apply formula. v1+v2÷(2)
i hope it will help you...
thanks
thanku....
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