Which of the following force-displacement combinations results in zero work done on…

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

Problem

Which of the following force-displacement combinations results in zero work done on the object by the stated force? (a) A

10\,\text{N}

force directed opposite to a

4\,\text{m}

displacement (b) A

10\,\text{N}

force that makes a

60^{\circ}

angle with a

4\,\text{m}

displacement (c) A

10\,\text{N}

force that remains perpendicular to a

4\,\text{m}

displacement (d) A

10\,\text{N}

force directed along a

4\,\text{m}

displacement