The K. E. of a body moving along a straight line varies with time as shown in the figure. The product of acceleration and velocity of body is

zero

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directly proportional to velocity

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directly proportional to time

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constant

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Solution

The correct option is D constant
Power is equal to rate of change of kinetic energy, and here rate of change of kinetic energy is constant.
Power $= F . v = m a v$
So, the product of acceleration and velocity is constnat.

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The K. E. of a body moving along a straight line varies with time as shown in the figure. The product of acceleration and velocity of body is

The correct option is D constant Power is equal to rate of change of kinetic energy, and here rate of change of kinetic energy is constant. Power =F.v=mav So, the product of acceleration and velocity is constnat.

The correct option is D constant
Power is equal to rate of change of kinetic energy, and here rate of change of kinetic energy is constant.
Power $= F . v = m a v$
So, the product of acceleration and velocity is constnat.