The lower the angle of the slope, the acceleration along the ramp, therefore, the speed at the bottom of a slope will be, and, consequently, the control will be better. The acceleration along the ramp, therefore, the speed at the bottom of a slope will be:
a. lower
b. gcostheta
c. higher
d. gsintheta

Lower

Lower

gsintheta (gsinθ)

Explanation:

The sum of forces resolved parallel to the inclined plane is given by;

F - mgsinθ = 0

ma - mgsinθ = 0

ma = mgsinθ

a = gsinθ

Acceleration is proportional to angle of inclination, thus the lower the angle of the slope, lower the acceleration along the ramp.

therefore, the speed at the bottom of a slope will be lower, (velocity is directly proportional to acceleration) and, consequently, the control will be better.

The acceleration along the ramp, is gsintheta (gsinθ)

the reason is because the moon has some form of gravity, and that gravity pulls the ocean tides.