Question

Momentum of an object changes from 100 kgm/s to 200 kgm/s in 2 seconds. What is the force applied on it?​

Answer 1

Given :-

Initial momentum = 100 kg m/s

Final momentum = 200 kg m/s

Time taken by the object = 2 sec

To Find :-

The force applied on the object.

Analysis :-

Here we are given with the initial and final momentum, time taken by the object.

Substitute the given values such that force is equal to change of momentum by the time taken by the object.

Solution :-

We know that,

• f = Force
• p = Momentum
• t = Time

Using the formula,

$\underline{\boxed{\sf Force= \dfrac{Change \ in \ momentum}{Time \ taken} }}$

Given that,

Initial momentum = 100 kg m/s

Final momentum = 200 kg m/s

Time (t) = 2 sec

Substituting their values,

⇒ f = p₂ - p₁ / t

⇒ f = 200 - 100 / 2

⇒ f = 100/2

⇒ f = 50 N

Therefore, the force applied on the object is 50 N.

Answer 2

Answer:

the force applied on the object is 50 N