What determines the power or strength of downhill force?

The strength of downhill force, often referred to as gravitational force acting along an incline, is determined primarily by the weight of the object and the angle of the slope it is resting on. The weight of the object influences the amount of gravitational force acting on it, while the slope determines how much of that gravitational force contributes to the downhill movement. A steeper slope will result in a greater component of the gravitational force acting along the incline, thereby increasing the downhill force. This is based on the principles of physics, particularly the equations that describe how forces resolve into components along different axes.

The weight and shape of the object do influence its stability and possibly the friction it generates, but they do not directly determine the power of the downhill force in the context of an incline. The type of ground plays a role in determining friction but is not a direct factor in calculating the downhill gravitational force. Speed pertains to the motion of the object rather than the force exerted by gravity along an incline.