Q. 155.0( 1 Vote )

The velocity-time graph of a body has a negative slope. The body is undergoing:A. uniform accelerationB. uniform retardationC. variable accelerationD. variable retardation

The graph says that the velocity is decreasing with time. Now, slope of velocity – time graph gives acceleration.

Hence acceleration is the rate of change of velocity. Since velocity is decreasing, hence acceleration is also negative. Now, negative acceleration is also called retardation.

Since the slope is constant, hence the body has uniform retardation. Hence option B is correct.

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