Answer : The magnitude of the impulse given to the puck is, 4 N.s
Explanation :
Impulse : It is defined as the force applied to an object for a certain amount of time.
Formula used :
![I=F* t](https://img.qammunity.org/2019/formulas/physics/middle-school/90ly16w5e193ykpzcgk1p89gyqnoxarhkb.png)
where,
I = impulse = ?
F = force = 25.0 N
t = time = 0.16 s
Now put all the given values in the above formula, we get:
![I=(25.0N)* (0.16s)](https://img.qammunity.org/2019/formulas/physics/middle-school/m75va42qt8fh8j2bf8mtc50mnc6zsuqtkh.png)
![I=4N.s](https://img.qammunity.org/2019/formulas/physics/middle-school/7z6u4qblwcds0w3egb0uo2igjbeq1yqeig.png)
Therefore, the magnitude of the impulse given to the puck is, 4 N.s