A ball initially at rest is pushed in a straight line by a constant horizontal force…

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

0.5\,\text{kg}

ball initially at rest is pushed in a straight line by a constant horizontal force of

4\,\text{N}

over a distance of

2\,\text{m}

. Neglect all other forces. What will be the speed of the ball immediately after the force stops acting? (a)

8.0\,\text{m}\,\text{s}^{-1}

(b)

5.7\,\text{m}\,\text{s}^{-1}

(c)

4.0\,\text{m}\,\text{s}^{-1}

(d)

2.8\,\text{m}\,\text{s}^{-1}