A model car rolls down an incline with a slope so the gravitational “pull” in the direction of motion is one third of the standard gravitational force . If the car has a mass of 0.45 kg find the acceleration.
ma = ∑ F = mg / 3
a = mg / 3m = g/3
= 9.80665 / 3 = 3.27 m/s2
This acceleration does not depend on the mass of the model car.
