Circular Motion

Circular Motion

Examples:

• Satelittes orbitiong planets
• Cars going around roundabouts
• Fairground rides
• Electrons orbiting a necleus
• Hammer throwing

Centripetal Force

If the radius of the circle is r, then the distance moved around the circle is rθ, where θ is in radians. 

r x θ = s           therefore speed =s/t = rθ/t

Angular Velocity = ω = θ/t 

Tangential Speed = ω x r

 Centrpetial force is the RESULTANT FORCE. It is not a new force!

It is the…