Question

a volleyball with a mass of 0.28 kg accelerates 5.00 m/s² when a force is applied to it. what is the amount of the force?
1.4 n
5.0 n
0.056 n
18 n
question #8
if acceleration is constant and mass decreases in newtons 2nd law of motion, force will
be zero
decrease
stay the same
increase

Explanation:

Step1: Recall Newton's second - law formula

$F = ma$, where $F$ is force, $m$ is mass, and $a$ is acceleration.

Step2: Identify given values

$m = 0.28\ kg$, $a=5.00\ m/s^{2}$.

Step3: Substitute values into formula

$F=(0.28\ kg)\times(5.00\ m/s^{2}) = 1.4\ N$.

For the second question:
Newton's second - law is $F = ma$. If $a$ is constant and $m$ decreases, since $F$ is directly proportional to $m$ (when $a$ is fixed), $F$ will decrease.

Answer:

First question: A. 1.4 N
Second question: B. Decrease