Possible forces acting on the ball rolling down a slope?

AI Thread Summary
The discussion focuses on the forces acting on a ball rolling down a slope, specifically neglecting friction and air resistance. The primary forces identified are the gravitational force exerted by the Earth and the normal force from the slope. While these two forces are sufficient in an ideal scenario, real-world conditions introduce additional factors such as energy transfer and inefficiencies, which may involve mechanical energy converting to heat or sound. The conversation highlights the distinction between theoretical physics and practical applications. Overall, the forces acting on the ball are primarily gravitational and normal, with real-world considerations adding complexity.
GreenTea09
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neglecting friction from the slope and air resistance,
what are the possible forces acting on the ball?

i can only think of 2:
gravitational force by the Earth on the ball.
normal force exerted by the slope on the ball.

are there any other forces else that i missed out?
 
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Sounds like that's about it.

Of course, if the ball is rolling down the slope, there is usually friction involved. (Else it would just slide.)
 
Last edited:
GreenTea09 said:
neglecting friction from the slope and air resistance,
what are the possible forces acting on the ball?

i can only think of 2:
gravitational force by the Earth on the ball.
normal force exerted by the slope on the ball.

are there any other forces else that i missed out?

In ideal conditions you are correct.

Real world: Energy transfer/inefficiencies would include mechanical to heat, sound, if hitting some rocks (sparks) light... if it's a metal ball passing over any magnets in the ground, electric.
 

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