Introduction

According to Isaac Newton's theory, force is defined as the push or pull of an object with mass, causing it to change its velocity. Force is an external agent capable of changing a body's state of rest or motion. It has magnitude and direction.

S.I Unit of Force

Types of Forces

There are two types of forces.

1. Contact forces

2. Non-contact forces

Forces that act on a body directly or indirectly through any medium are called “contact forces.”

Examples of contact forces are;

• Muscular Forces

• Mechanical Forces

• Frictional Forces

Forces that act through spaces without making any body contact are known as “non - contact forces.”

Examples of non-contact forces;

• Gravitational Forces

• Electrostatic Forces

• Magnetic Forces

Unit of Forces;

• In the centimetre-grammar-second system of units (CGS unit), force is expressed in dyne.

• The standard international system of units (SI unit) is expressed in Newton (N).

Effects of Force:

A motion is known as a change in position concerning time. In simpler words, motion refers to the movement of a body. Traditionally, motion can be described as

• Change in speed

• Change in direction

Force that has different effects. In different scenarios.

• They can make a body that is at rest to move.

• They can stop a moving body or slow it down.

• They can accelerate the speed of a moving body.

• They also change the direction of a moving body, along with its shape and size.