A ball rolling along a straight track has a speed of

PHYSICS · Subjective · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line

Problem

20\,\text{m/s}

. It slows down uniformly at

2\,\text{m/s}^2

until its speed becomes

8\,\text{m/s}

. Immediately afterwards, it moves with a uniform acceleration of

3\,\text{m/s}^2

in the same direction for

4\,\text{s}

. Calculate the total displacement of the ball from the instant it begins to slow down until the end of the

4\,\text{s}

acceleration.