Question

A woman, driving a golf ball off of the tree, gives the ball a speed of 20.0m/s. The mass of the ball is 45g and the duration of the impact with the golf club is 6.0x10^3

a) What is the change in the momentum of the ball?
b) Determine the average force applied by the club.

Answer 1

See the answers below.

Step-by-step explanation:

a)

The change in momentum can be calculated by means of the following equation.

`P=m*v`

where:

P = momentum [kg*m/s]

m = mass = 45 [g] = 0.045 [kg]

v = velocity = 20 [m/s]

`P=20*0.045\\P=0.9[kg*m/s]`

b)

The change in momentum can also be calculated by means of the product of force by the duration time of the impact.

`F*t=P\\F*0.006=0.9\\F=0.9/0.006\\F =150 [N]`