Question

1. a boy kicks a football with a force of 20 n, the time the force acts for is 0.3 s. calculate the impulse on the ball.

Explanation:

Step1: Recall impulse - force - time formula

Impulse \(J = F\times\Delta t\)

Step2: Substitute given values

Given \(F = 20\ N\) and \(\Delta t=0.3\ s\), so \(J = 20\times0.3\)

Answer:

\(6\ N\cdot s\)