Question

newtons laws quiz
calculate the answer and write in the box below.
what force is required to stop a tow truck with a mass of 2,300 kg towing a car with a mass of 1,500 kg with an acceleration of 5.0 m/s²?
possible points - 10

Explanation:

Step1: Identify total mass

The total mass $m$ is the sum of the truck's mass and the car's mass. So $m = 2300\ kg+ 1500\ kg=3800\ kg$.

Step2: Apply Newton's second - law

Newton's second - law is $F = ma$. The acceleration $a=- 5.0\ m/s^{2}$ (negative because it is decelerating to stop). Substitute $m = 3800\ kg$ and $a=-5.0\ m/s^{2}$ into the formula: $F=3800\ kg\times(- 5.0\ m/s^{2})=-19000\ N$. The magnitude of the force is $19000\ N$.

Answer:

$19000$