Which of the following is not a no-contact force ? (a) electrostatic force (b) gravitational force (c) frictional force (d) magnetic force
Classify the following amongst contact and non-contact forces: (a) frictional force, (b) Normal reaction (c) force of tension in a string, (d) gravitational force, (e) electrostatic force, (f) magnetic force.
Which of the following is a contact force: (a) electrostatic force (b) gravitational force (c) Frictional force (d) magnetic force.
Which of the following is/are a non-contact force(s)?
1. Gravitational force
2. Electrostatic force
3. Muscular force
4. Magnetic force