An object travels in a circle of radius 2.0 m with a constant ...

[formula1]

An object travels in a circle of radius 2.0 m with a constant speed of 4.0 m/s. What is the direction of its acceleration?
 a. Toward the center of the circle
  b. Normal to the plane of the circle
  c. Insufficient data given for determination
  d. Tangential to the circle
  e. None of these

Question 2

When there is a net absorption of energy in a chemical reaction, it is called a(n) ______________ reaction.
 a. exothermic
  b. activation
  c. endothermic
  d. combustion

[Meganchabluk]

Answer to Question 1

a

Answer to Question 2

c

[formula1]

Thanks for the timely response, appreciate it

[ttt030911]

Excellent