A 615.00 kg race car is uniformly traveling around a circular race track. It takes the race car 20.00 seconds to do one lap around the 80.00 m radius circular track. What is the frequency of the race car's circular motion?

The value is  

Explanation:

From the question we are told that

     The mass of the car is  

      The period of the circular motion is  

      The radius  is

Generally the frequency of the circular motion is  

=>    

=>    

a.) is the correct answer.

explanation:

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle