Question

what is the change in momentum of a body of mass 10kg moving with an initial velocity of 5m/s and a final velocity of 10m/s.

Answer 1

Answer:

50

Explanation:

change in momentum = m(v-u)

= 10(10-5)

= 50

Answer 2

Change in momentum of body is 50 kg.m/s

Solution :-

Given that a body of mass 10kg moving with an initial velocity of 5m/s and a final velocity of 10m/s.

We have to find change in momentum of a body.

Now we have ;

→ Mass of body (m) = 10 kg

→ Initial velocity (u) = 5 m/s

→ Final velocity (v) = 10 m/s

Now as we know that,

→ Initial momentum (p) = m * u

→ Initial momentum (p) = 10 * 5

→ Initial momentum (p) = 50 kg.m/s

Now again,

→ Final momentum (p") = m * v

→ Final momentum (p") = 10 * 10

→ Final momentum (p") = 100 kg.m/s

Now let's find change in momentum :

→ Change in momentum = Final momentum - Initial momentum

→ Change in momentum = p" - p

→ Change in momentum = 100 - 50

→ Change in momentum = 50 kg.m/s

Hence,

Change in momentum of body = 50 kg m/s