Question

select the correct answer. when a net force of 17.2 newtons is applied to a dictionary placed on a frictionless table, it accelerates by 3.75 meters/second². what is the mass of the book?
a. 4.02 kilograms
b. 4.52 kilograms
c. 5.02 kilograms
d. 6.02 kilograms

Explanation:

Step1: Recall Newton's second - law

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

Step2: Rearrange the formula for mass

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

Step3: Substitute given values

Given $F = 17.2$ N and $a=3.75$ m/s², then $m=\frac{17.2}{3.75}\approx4.59$ kg. The closest value to $4.59$ kg among the options is 4.52 kg.

Answer:

B. 4.52 kilograms