dchambers3274
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Which statement about forces is true?

1. Forces are defined by strength but not direction
2. Forces are defined by direction but not strength
3. Forces are defined by but strength and direction
4. Forces act only on objects that are in contact

Respuesta :

gabest692

Answer:

Force acts only on objects that are in contact.

Explanation:

Force only exists as a result of an interaction. If there is no interaction, the objects no longer experience the force. Force is measured in units called Newtons (N), named after the famous scientist Sir Issac Newton.

For force to exist, there must be an interaction between at least two objects. This interaction between the objects may or may not be physical. Pulling a rope or hitting a ball with a bat come physical interaction whereas forces like the magnetic force, electrostatic force, etc come under non-physical force.

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