Which of the following are contact forcesa)normal reaction force b)for

1.	Which of the following are contact forcesa)normal reaction force b)force between like poles of a magnet c)muscular force d)weight of a bodySome may have more than one correct selection.
Answer» Answer: EXPLANATION: The FORCES which act on bodies when they are in physical CONTACT. are called contact forces. For e.g. frictional force and force exerted on two bodies during a collision. The forces experienced by bodies even without being physically touched are called the non-contact forces. For e.g. GRAVITATIONAL force and Electrostatic force. Contact force: (a) frictional force (b) NORMAL reaction force (c) force of tension in a string Non-contact force: (d) gravitational force (e) electric force (f) magnetic force

Which of the following are contact forcesa)normal reaction force b)force between like poles of a magnet c)muscular force d)weight of a bodySome may have more than one correct selection.

Answer»

Answer:

The FORCES which act on bodies when they are in physical CONTACT. are called contact forces. For e.g. frictional force and force exerted on two bodies during a collision.

The forces experienced by bodies even without being physically touched are called the non-contact forces. For e.g. GRAVITATIONAL force and Electrostatic force.

Contact force: (a) frictional force (b) NORMAL reaction force (c) force of tension in a string

Non-contact force: (d) gravitational force (e) electric force (f) magnetic force

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