Question

6 a 2 - kg toy truck is traveling eastward with a constant velocity of 5 m/s, what is the net external force acting on the car? 7 n 0 n 3 n 10 n

Explanation:

Step1: Recall Newton's second law

Newton's second law is \(F = ma\), where \(F\) is the net force, \(m\) is the mass, and \(a\) is the acceleration.

Step2: Determine the acceleration

Since the velocity is constant (\(v = 5\space m/s\)), the acceleration \(a=\frac{\Delta v}{\Delta t}=0\space m/s^{2}\) (because \(\Delta v = 0\)).

Step3: Calculate the net force

Substitute \(a = 0\space m/s^{2}\) and \(m=2\space kg\) into \(F = ma\). So \(F=(2\space kg)\times(0\space m/s^{2}) = 0\space N\)

Answer:

0 N