Question

question 2 of 10 your friends sit in a sled in the snow. if you apply a force of 75 n to them, they have an acceleration of 0.9 m/s². what is their mass? a. 75 kg b. 68 kg c. 97 kg d. 83 kg

Explanation:

Step1: Recall Newton's second law

$F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. We need to solve for $m$.

Step2: Rearrange the formula for mass

$m=\frac{F}{a}$

Step3: Substitute given values

Given $F = 75\ N$ and $a=0.9\ m/s^{2}$, so $m=\frac{75}{0.9}\approx83.33\ kg$.

Answer:

D. 83 kg