Classical Mechanics

Circular Motion

Uniform circular motion - Basic


A racing car moving at a constant tangential speed of 44 m/s 44 \text{ m/s} on a circular track takes one lap around the track in 45 seconds. 45 \text{ seconds.} Determine the approximate magnitude of the acceleration of the car.

A 11 kg 11 \text{ kg} rock swings in a circle of radius 10 m 10 \text{ m} at a constant speed of 7 m/s. 7 \text{ m/s}. What is the centripetal acceleration?

A 5 kg 5 \text{ kg} rock swings in a vertical circle of radius 2 m. 2 \text{ m}. The speed of the rock as it passes its lowest point is 10 m/s. 10 \text{ m/s}. What is the tension T T acting on the rock as it passes its lowest point?

The gravitational acceleration is g=10 m/s2. g= 10 \text{ m/s}^2.

An object that moves in uniform circular motion has a centripetal acceleration of 11 m/s2. 11 \text{ m/s}^2. If the radius of the motion is 0.02 m, 0.02 \text{ m}, what is the approximate frequency of the motion?

A skater is skating at 14 m/s 14 \text{ m/s} on a circle of radius 4 m. 4 \text{ m}. The ice exerts a central force of 2058 N 2058 \text{ N} on the skater. What is the mass of the skater?


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