Question

1. how much time in s is needed for a 4 n force to create an impulse of 16 n - s?

Explanation:

Step1: Recall impulse - force - time formula

The formula for impulse $J$ is $J = F\times t$, where $J$ is impulse, $F$ is force and $t$ is time. We need to solve for $t$.

Step2: Rearrange the formula for $t$

From $J = F\times t$, we can get $t=\frac{J}{F}$.

Step3: Substitute given values

Given $J = 16\ N - s$ and $F = 4\ N$. Then $t=\frac{16\ N - s}{4\ N}$.

Step4: Calculate the time

$t = 4\ s$.

Answer:

$4$