Answer:
[tex]{\triangle}p=p_{f}-p_{i}=-10-2=-12kgms^{-1}[/tex]
Step-by-step explanation:
It is given that the mass of the soccer ball is=0.40 kg and it is kicked with the velocity of=[tex]5ms^{-1}[/tex], then the initial momentum will be:
[tex]p_{i}=mv=0.40{\times}5=2kgms^{-1}[/tex]
Then, the velocity is changed to [tex]-25ms^{-1}[/tex], then the final momentum will be:
[tex]p_{f}=mv=0.40{\times}(-25)=-10kgms^{-1}[/tex]
Now, Impulse that the player applied to the ball will be:
[tex]{\triangle}p=p_{f}-p_{i}=-10-2=-12kgms^{-1}[/tex]
