Question

second law of newton with example

Answer 1

hanji 2 nd law chahiye apko 10 MEI hokya ji

Answer 2

According to Newton's second law, rate of change of Linear Momentum in a body is directly proportional to force applied

Numerically..it is..force = mass × acceleration

The first and third law of Newton can be derived from the second law.

…. Explanation of how rate of change of Linear Momentum is directly proportional to force applied is as following:

We know momentum = mass × velocity

change in momentum = mass × changed velocity

Let final velocity be = v

Initial velocity= u

Change in velocity = v-u

Changed momentum = mass × (v-u)

Now..let us take change in momentum per unit time

= [Mass × (v-u)]÷ time

= Mass × (v-u)/t

As..(v-u)/t = acceleration

So..mass × (v-u)/t

= Mass × acceleration= force……answer

Examples are :-

If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass.

It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one.