Question

The smith family is travelling in their car at 50 km/h due east. Mr. Smith is using cruise control to maintain a constant speed. Describe the net force acting on the smith car.

Answer 1

The net force would be zero

Step-by-step explanation:

Since, F = m*a

So, if the speed is constant, similarly if we include direction the Velocity is constant and that means that acceleration is zero as acceleration itself is change in velocity per time so constant velocity and since,

a = (Vf - Vi)/change in time
a = 0

then
F = m*0

so F is also zero