Question

1. you drop a ball. the ball felt an impulse of 20 ns. the time the ball was contacting the ground was 0.4 seconds. what was the average force the ball felt during the collision? drawing given $j = 20ns$ $\delta t = 0.4s$ unknown f equations $j = f\delta t = m\delta v = \delta p$ substitute/solve

Explanation:

Step1: Recall the impulse formula

The formula for impulse \(J\) is \(J = F\Delta t\), where \(J\) is impulse, \(F\) is average force, and \(\Delta t\) is time interval.

Step2: Solve for \(F\)

Rearrange the formula to \(F=\frac{J}{\Delta t}\). Substitute \(J = 20\space Ns\) and \(\Delta t=0.4\space s\) into the formula: \(F=\frac{20}{0.4}\).

Answer:

\(50\space N\)