Question

3. A soccer player applies an average force of 180 N during a kick. The kick accelerates a .45 kg soccer ball from rest to a speed of 18 m/s. What is the impulse imparted to the ball

Answer 1

8.1Ns

Step-by-step explanation:

Impulse is expressed as the product of Force and time

Impulse = Ft

F is the force = 180N

Get the time using the equation of motion

v = u+at

18 = 0+F/m(t)

18 = 180/0.45(t)

18 = 400t

t = 18/400 secs

Recall that;

Impulse = Ft

Impulse = 180×18/400

Impulse = 8.1Ns

Hence the impulse imparted to the ball is 8.1Ns