Question

what are possible formulas for impulse? check all that apply.
j = fδt
j = \frac{f}{δt}
j = fδv
j = \frac{m}{δt}
j = mδv
j = δp

Explanation:

Step1: Recall impulse - force - time relationship

Impulse ($J$) is defined as the product of the average force ($F$) acting on an object and the time interval ($\Delta t$) during which the force acts. So, $J = F\Delta t$.

Step2: Recall impulse - momentum relationship

According to the impulse - momentum theorem, impulse is equal to the change in momentum ($\Delta p$) of an object. Also, since $p=mv$ (momentum $p$ is mass $m$ times velocity $v$), $\Delta p = m\Delta v$. So, $J=\Delta p=m\Delta v$.

Answer:

$J = F\Delta t$, $J = m\Delta v$, $J=\Delta p$