Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Work Power Energy

Question:

No work is done when :

Options:

a box is pushed along horizontal floor 

a nail is hammered into a wooden box 

there is no component of force, parallel to the direction of motion 

none of these

Correct Answer:

there is no component of force, parallel to the direction of motion 

Explanation:

When there will be no component of force, parallel to the direction of motion then force F in direction of motion is zero, so work done will also be zero.