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Q.

Which of the following four statements is false?

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a

A body can have zero velocity and still be accelerates

b

A body can have a constant velocity and still have a varying speed

c

A body can have a constant speed and still have a varying velocity

d

The direction of the velocity of a body can change when it’s acceleration is constant

answer is B.

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Detailed Solution

about (1)option ,at the extreme position of oscillator, velocity = 0, but acceleretion is not 0,about(3)option, body moving on circular path, can have  constant speed with varying velocityabout(4) acceleration is rate of change of velocity,hence option (2) is false
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