Question

define force. describe with suitable examples, the contact and noncontact force​

Answer 1

a push or pull on an object is called force. For example- pushing or pulling a door.

contact force-force applied on an object by touching, is known as contact force.ex- muscular and frictional force.

non-contact force- forces comes to play without any physical contact of object are known as non contact force. example - magnetic force, electrostatic force and gravitational force ....

HOPE IT HELP YOU....

Answer 2

$\bf{\underline{\underline{Force}}}$

✴Force is a push or a pull that changes or tends to change the shape and size of a object.

✴Force = Mass × Acceleration

✴SI unit of Force = Newton (N)

✴Force are of two types => Contact force

=>Non contact force

$\bf{\underline{\underline{ Contact force }}}$

✴Contact force is the force that acts in contact.

Example -

• Muscular force
• Mechanical force
• Frictional force

$\bf{\underline{\underline{Non Contact Force}}}$

✴It is the force that doesnt acts in contact..

Example-

• Gravitational force
• Electrostatic force
• Magnetic force