A race car, traveling at a constant speed of 50. m/s, drives ...

[Coya19@aol.com]

A race car, traveling at a constant speed of 50. m/s, drives around a circular track of radius 250. m. What magnitude acceleration does it experience?
 
  A) 1.0 m/s2
  B) zero
  C) 10. m/s2
  D) 0.63 km/s2
  E) 2.2 m/s2

Question 2

If two or more sources of light are to show interference patterns, they must be coherent.
 
  Indicate whether the statement is true or false

[SomethingSomething]

Answer to Question 1

C

Answer to Question 2

TRUE

[Coya19@aol.com]

Excellent

[bitingbit]

Thanks for the timely response, appreciate it