Analyzing Forces in Circular Motion: Ramp and Ball System

[tbear]

Homework Statement

A ball rolls down a ramp which forms a quarter circle of radius 0.5m. The ball weighs 25g. The bottom of the ramp is 1.5m above the floor. Assume no friction between the ball and the ramp. Assume no air resistance.

• what is the force exerted by the ramp on the ball?
• whatis the force exerted by the ball on the ramp?

Homework Equations

The Attempt at a Solution

 

[CWatters]

Welcome to the forum. Forum rules require you to make an attempt at a solution. That's why there is a part 2 and 3 on the template. Doesn't matter if you get stuck just give it a go first.

 

[tbear]

I used Fnet = Fcircular+ Fg

 

[Diegor]

I used Fnet = Fcircular+ Fg

That force, in which body is acting? Are they components or your equatin is a vector equation. Try to explain your approach in words so we can help you.

 

[PeterO]

Homework Statement

A ball rolls down a ramp which forms a quarter circle of radius 0.5m. The ball weighs 25g. The bottom of the ramp is 1.5m above the floor. Assume no friction between the ball and the ramp. Assume no air resistance.

• what is the force exerted by the ramp on the ball?
• whatis the force exerted by the ball on the ramp?

Homework Equations

The Attempt at a Solution

Where is your attempted solution?
I would be considering Gravitational Potential Energy (mgh). Kinetic Energy (1/2.m.v^2) and Centripetal Force (m.v^2 / R) at various places along the ramp.
Newton's Laws - especially the 3rd - could be useful at times too.

 

[haruspex]

I used Fnet = Fcircular+ Fg

What do you mean by F_circular? If you mean centripetal force, that is not an applied force. It is the radial component of the resultant force, i.e. the component of the resultant force that is normal to the velocity. So you would not add it to F_g.