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

Initial momentum, p1 = 100kg-m/s

Final momentum, p2= 200kg-m/s

Time,t= 2 s

Force,F = ?

Using the formula,

F= p2-p1/t

F= 200-100/2

F= 100/2

F= 50 N

Hence the force applied is of 50 N...

Answer 2

Answer:

The force applied to the object is 50 Newton.

Explanation:

Value of initial momentum(р₁)=100kgm/s

Value of final momentum((р₂)=200kgm/s

Time(t)=2 sec.

To find the force applied on it

Solution:

Change in momentum(р)= р₂ - р₁

⇒200 - 100

⇒100kgm/s

Using formula of momentum

$Force= Change in momentum/Time$

⇒100/2

⇒50 Newton

Hence, the force applied to an object is 50 N.