A hobby rocket reaches a height of 72.3 m and lands 111 m from ...

[sammy]

A hobby rocket reaches a height of 72.3 m and lands 111 m from the launch point with no air resistance. What was the angle of launch?
 
  A) 69.0
  B) 67.4
  C) 22.6
  D) 44.8

Question 2

Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a speed of 0.850 m/s and air track cart B has a mass of 300 g and moves toward the left with a speed of 1.12 m/s.
 
  What is the total momentum of the system? A) 0.047 kgm/s toward the right
  B) 0.719 kgm/s toward the right
  C) 0.719 kgm/s toward the left
  D) 0.750 kgm/s toward the right
  E) 0.750 kgm/s toward the left

[meltdown117]

Answer to Question 1

A

Answer to Question 2

A

[sammy]

Excellent

[aliotak]

Gracias!