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Author Question: Without air resistance, a projectile fired horizontally at 8 km/s from a mountain top will A) ... (Read 217 times)

serike

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on: Jul 29, 2018
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


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Kimmy

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


serike

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Reply #2 on: Jul 29, 2018
Thanks


Kimmy

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Reply #3 on: Jul 29, 2018
Welcome :)


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