Question

5.40 * 104 NS
6. A wooden ball with a mass of 0.45 kg is at rest when it is tapped by a wooden mallet that applies an
average force of 83 N to the ball. After contact with the mallet, the ball moves forward at 1.3 m/s. How
long was the mallet in contact with the ball?
A. 7.0 milliseconds
B. 3.7 milliseconds
C. 2.4 milliseconds
D. 0.59 milliseconds

Answer 1

Answer:

A. 7.0 milliseconds

Explanation:

We know the formula: Force = [mass( final velocity - initial velocity )] / time

using the formula:

83 = 0.45 (  1.3 - 0 ) / time

time = ( 0.45 * 1.3 )/ 83

time  = 0.585/83

time = 7.0 milliseconds