Uniform Circular Motion

Uniform Circular Motion

1. Moving in a circular motion with a speed that does not change

2. Uniform means "constant." Circular refers to a "circular path." Motion implies "movement."

3. Uniform Circular Motion Speed Calculation d = distance = circumference = 2πr t = time = period = T v = (2πr)/Tnstant height

4. Centripetal Force

   • An object travels in uniform circular motion because a force acts to pull the object out of a straight path and into a circular path

5. Tangential Velocity

   • The velocity measured at any point tangent to a turning wheel
   • Vt = 12 m/sec.

6. Centripetal acceleration

   • the rate of change of tangential velocity
   • ac = v2/r

7. Circumference

   • The circumference of a circle is the distance around it.

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