Answer to Question #324643 in Physics for janice

Question

A hammer head, with a mass of 10.0 kg, strikes a nail at a horizontal velocity of 12.2 m/s and comes to rest in a time interval of 0.004 s. Find the impulse imparted to the nail and the average force the hammer exerted on the nail?

Answer 1

(a)

$$\Delta p=m\Delta v\\ =10.0*12.2=122\:\rm kg*m/s$$

(b)

$$F=\frac{122}{0.004}=30500\:\rm N$$