Question

a sledgehammer has a mass of 3.5 kilograms. what net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0m/s²?

Explanation:

Step1: Recall Newton's second - law

$F = ma$

Step2: Substitute given values

$m = 3.5\ kg$, $a=4.0\ m/s^{2}$, so $F=(3.5)\times(4.0)$

Step3: Calculate the force

$F = 14\ N$

Answer:

14