Question

A kid with good form kicks a ball with a force of 10.0 N while making contact for 0.225 s. An adult with bad form kicks the ball with a force of 21.2 N while making contact for 0.102 s. What is the impulse, change of momentum, imparted by the kid?

Answer 1

The impulse and the change of momentum imparted by the kid when kicking the ball are both 2.25 kg·m/s, calculated by multiplying the force of 10.0 N by the time of contact, which is 0.225 s.

Step-by-step explanation:

The impulse imparted by the kid when kicking the ball can be calculated using the formula for impulse, which states that impulse is equal to the product of the force and the time over which the force is applied. In this case, the kid applies a force of 10.0 N for a duration of 0.225 s.

The impulse is therefore calculated as:

Impulse = Force × Time

Impulse = 10.0 N × 0.225 s

Impulse = 2.25 N·s

This means the change of momentum, which is equivalent to the impulse when mass remains constant, imparted by the kid is 2.25 kg·m/s.