A cyclist reduces her speed from to in on a straight road

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

A cyclist reduces her speed from 12 m/s12\,\text{m/s} to 8 m/s8\,\text{m/s} in 2 s2\,\text{s} on a straight road. Which of the following correctly states the value and nature of her acceleration? (a) +2 m/s2+2\,\text{m/s}^2, the cyclist is slowing down (b) −4 m/s2-4\,\text{m/s}^2, the cyclist is slowing down (c) −2 m/s2-2\,\text{m/s}^2, the cyclist is slowing down (d) −2 m/s2-2\,\text{m/s}^2, the cyclist is speeding up

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