The force that causes your car to gain momentum when going downhill is known as gravity. True / False.

TRUE. The weight component is responsible for acceleration and therefore the increase in vehicle speed,

Explanation:

Let's write Newton's second law for the car down a slope

Y Axis

N-Wy = 0

N = Wy

X axis

Wx - fr = m a

Using trigonometry

sin θ = Wx / W

cos θ = Wy / W

Wx = W sin θ

Wy = W cos θ

We replace

W sin θ - fr = m a

The weight component is responsible for acceleration and therefore the increase in vehicle speed,

fr is the force of car brakes

Consequently, of the above TRUTH