A block, initially at rest, is pushed by a constant horizontal force of through a…

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

Problem

2\,\text{kg}

block, initially at rest, is pushed by a constant horizontal force of

10\,\text{N}

through a distance of

4\,\text{m}

on a smooth surface. Find the speed of the block after the displacement. (a)

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

(b)

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

(c)

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

(d)

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