Motions in the planes need equation

[zelda1850]

Homework Statement

A 5.0 kg object revolving around a circular track in a horizontal plane at constant speed. The radius of the track is 20. meters and the centripetal force on the object is 4.0 x 10 exponent 2 Newtons

1) The objects centripetal acceleration is?

2) The objects speed is?

Homework Equations

Ac = Velocity exponent 2 / raidius

how can i find the velocity for the equation?

The Attempt at a Solution

im not sure how to do it yet can someone give me the equations for the problem?

 

[Gear300]

Since you can consider F = ma, you can find the centripetal acceleration since you already have the value of the force and mass. With that, you should be able to solve for the velocity.

 

[zelda1850]

oh thanks is the equation the same for objects speed?

 

[zelda1850]

how can i solve the objects speed?