Question

5 what is the mass of an object with a momentum of 403.2 kg x m/s and a velocity of 8.7 m/s north? (a) what are you solving for? a mass b momentum c velocity (b) what is the equation you need to use to solve this problem? a $m = \frac{p}{v}$ b $v = \frac{p}{m}$ c $p = m \cdot v$ (c) what is your answer? a 394.5 b 46.3 c 411.9

Explanation:

Step1: Identify what's asked

We are asked to find mass.

Step2: Select the formula

The formula for momentum $p = m\times v$, so $m=\frac{p}{v}$.

Step3: Substitute values

Given $p = 403.2\ kg\cdot m/s$ and $v = 8.7\ m/s$, then $m=\frac{403.2}{8.7}$.

Step4: Calculate

$m = 46.3448\approx46.3\ kg$.

Answer:

(a) A. mass
(b) A. $m=\frac{p}{v}$
(c) B. 46.3