Physics, asked by nibedan3324, 1 year ago

The velocity of a body of mass 5kg reduces from 10m/s to 5m/s. what is the change in momentum of the body.

Answers

Answered by jarnailsingh258
19
Here
U=10m/s
V=5m/s
M=5kg

Initial momentum= m×u
5×10= 50
Final momentum=m×v
5×5=25
Change in momentum
Initial momentum-final momentum
= 50-25
= 25
Therefore change in momentum is 25.

May be it will help you
Answered by EliteSoul
6

Change in momentum of body is -25 kg m/s

Explanation

Given that the velocity of a body of mass 5kg reduces from 10m/s to 5m/s.

We have to find change in momentum of body.

Solution

Now we have ;

  • Mass of body (M) = 5 kg
  • Initial velocity of body (u) = 10 m/s
  • Final velocity of body (v) = 5 m/s

As we know formula :-

Initial momentum (p) = m * u

→ Initial momentum (p) = 5 * 10

Initial momentum (p) = 50 kg m/s

__________________________

__________________________

Now again,

→ Final momentum (p') = m * v

→ Final momentum (p') = 5 * 5

Final momentum (p') = 25 kg m/s

__________________________

__________________________

Now change in momentum of body :-

→ Change in momentum = p' - p

→ Change in momentum = 25 - 50

Change in momentum = -25 kg m/s

Hence,

Change in momentum of body = -25 kg m/s

Similar questions