Without air resistance, a projectile fired horizontally at 8 km/s ...

[serike]

Without air resistance, a projectile fired horizontally at 8 km/s from a mountain top will
 
  A) accelerate downward at g as it moves horizontally.
  B) trace a curve that matches Earth's curvature.
  C) return to its starting position and repeat its falling behavior.
  D) all the above
  E) none of the above

Question 2

Ignoring air resistance, what maximum speed can be given to a horizontally moving tennis ball as it clears the net 1.25 m high to remain within the edge of the court, which is 12.0 m from the bottom of the net?
 
  A) 12.0 m/s
  B) 16.0 m/s
  C) 24.0 m/s
  D) 48.0 m/s

[Kimmy]

Answer to Question 1

Answer: D

Answer to Question 2

Answer: C

[serike]

Thanks

[Kimmy]

Welcome