Impact of Force on Motion

Force can cause the following impact on motion

It can change state of rest to motion
It can change state of motion to rest
It can increase and decrease the speed of body
It can change the direction of motion

Mathematically we can the impact of force on motion by using second law of motion. According to Newton’s second law of motion force is equal to rate of change of momentum of object.

So let us derive it.

Let p is the momentum and t is time.

So by Newton’s second law of motion

F = dp/dt

Now momentum p = mv,

Applying constant rule of derivative

F = d(mv)/dt = mdv/dt {As m is mass which is constant}

dv/dt = a = acceleration

Here, we can see that force is causing change in motion.

Hence we F = ma

Hence, Force cause change in motion of object
So acceleration of on object is directly proportional to force applied on it and is inversely proportional of mass.
The direction of force determines the direction of acceleration of object. If direction of force and acceleration are in same direction then speed of object increases and if force and acceleration are in opposite direction then speed of object decreases.

Effects of Force – Concept and Examples

Force is a push or pull acting on a body. In day to day life, we encounter powerful effects of force all around us. From walking, lifting, writing, closing and opening of doors, we are surrounded by the effects of force. It is one of the fundamental physical phenomena. We can’t imagine our lives without force. Even planetary motion and various other natural activities are guided by the force.

In this article, we are going to learn about effects of force with a basic introduction of force and its types.

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