A car is traveling north at 1.77m/s. After 12 s its velocity is ...

[lidoalex]

A car is traveling north at 1.77m/s. After 12 s its velocity is in the same direction. Find the magnitude and direction of the car's average acceleration.
 
  A) 0.30 m/s2, south
  B) 2.7 m/s2, south
  C) 0.30 m/s2, north
  D) 2.7 m/s2, north

Question 2

For a falling ball the action force is the pull of Earth on the ball. The reaction force is the
 
  A) air resistance acting against the ball.
  B) acceleration of the ball.
  C) pull of the ball on Earth.
  D) nonexistent.
  E) none of the above

[duy1981999]

Answer to Question 1

A

Answer to Question 2

Answer: C

[lidoalex]

Excellent

[bblaney]

TYSM