Solution:
In this question we have given
mass of Cart=5Kg
change in speed,

We have to find, Impulse, I=?
Impulse :
Impulse of a body is equla to its change in momentum.
Therefore,
Impulse of cart is equal to its change in momentum:
................(1)
Put values of
, and m in eq(1)

Therefore, the impulse of the cart,
