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What is simple harmonic motion?what are its benifits?how it iss useful?

Hi dear..

Simple Harmonic Motion (SHM) is a periodic motion where Restoring force (F) is directly proportional to the displacement.

Consider an example, like if we have a block attached to wall through spring. If we pull the block, the spring expands and now it has a restoring force (F) which is equal and opposite to the force applied by us (as it wants to come in natural position) . Now, if we push it towards the wall, a restoring force is again set up but this time the spring wants to expand to come in it's natural position

Mathematically this is given as

F= -kx

F => Restoring force
k => Spring Constant
x => Displacement of the block given by us.

Here (-) sign indicates that the restoring force is in opposite direction.

~~> NOTE :- The restoring force is always equal and opposite to the force applied.

It is used in various applications like Oscillation of Pendulum, a free mass body hanging in space with a spring form a rigid support etc.

It is of great use which you will explore as you study this in detail in Higher Studies

All the best !!

Regards
Sammy11

Disadvantage of simple harmonic motion and advantage

Disadvantages on simple harmonic motion