Advertisements
Advertisements
Question
What is the work done when no net force is applied on the body?
Advertisements
Solution
When no net force is applied, the work done which is the dot product of force and displacement is zero.
APPEARS IN
RELATED QUESTIONS
A potter turns his wheel by applying a force through the stick near the rim of wheel.
Classify the following amongst contact and non-contact force.
force of tension in a string
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
State two factor on which moment of force about a point depends.
A spanner (or wrench) has a long handle. Why?
Explain the motion of a planet around the sun in a circular path.
Define the moment of force.
(i) What do you understand by the term couple of forces?
(ii) Calculate the moment of a couple shown in fig.

Define non-contact forces.
Write the expression for calculating the moment of force about a given point.

