When Mary is 3.00 m from the center of a merry-go-round, her ...

[audie]

When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88 m/s. (a) What is her angular speed in rad/s? (b) What is the magnitude of her linear acceleration?
 
  What will be an ideal response?

Question 2

Three identical 3.0-C charges are placed at the vertices of an equilateral triangle that measures 30 cm on a side. What is the magnitude of the electrostatic force on any one of the charges? (k = 1/40 = 9.0  109 N  m2/C2 )
 
  A) 1.6 N
  B) 1.8 N
  C) 2.0 N
  D) 2.2 N
  E) 2.4 N

[perkiness]

Answer to Question 1

(a) 0.627 rad/s (b) 1.18 m/s2

Answer to Question 2

A