Q.

Is it true that if the speed of an object is zero, its velocity must also be zero?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
If the speed of an object is zero, then there is no change in the position of the object with time. Hence, distance travelled, as well as displacement is zero. Therefore, as velocity is the rate of change of distance and distance is zero, velocity is also zero. Velocity is a vector quantity and speed is its magnitude as it is a scalar quantity.
 
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