A body is moving in a circular path such that its speed is decreasing with time. Angle between its velocity and acceleration may be

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180

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135

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Solution

The correct option is B 90
When a body moves in circular path then its velocity is changing as velocity is a vector quantity and since the direction of the body will change it's velocity will also change continuously. This change implies acceleration. Thus it allows the body to go round the circle having the velocity vector tangent to the circular trajectory and acceleration at $90 °$ to it directed towards the center.

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Similar questions

5 m / s

5 m / s^{2}

Mark the correct statement(s)
(1) If speed of a body is varying, its velocity must be varying and it must have non-zero acceleration.

(2) If velocity of a body is varying, its speed must be varying.

(3) A body moving with varying velocity may have constant speed.

(4) A body moving with varying speed may have constant velocity, if its direction of motion remains constant.

80 m

20 m / s

5 m / s

a

20 m / s^{2}

5 m / s^{2}

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