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Author Question: A 5-kg shark swimming at 1 m/s swallows an absent-minded 1-kg fish swimming toward it at 4 m/s. The ... (Read 109 times)

PhilipSeeMore

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on: Jul 29, 2018
A 5-kg shark swimming at 1 m/s swallows an absent-minded 1-kg fish swimming toward it at 4 m/s. The speed of the shark after his meal is
 
  A) 1/2 m/s.
  B) 1/5 m/s.
  C) 1/6 m/s.
  D) 2/3 m/s.
  E) 3/2 m/s.

Question 2

A 5000-kg freight car moving at 2 m/s collides with a 10,000-kg freight car at rest. They couple upon collision and move away at
 
  A) 2 m/s.
  B) 1 m/s.
  C) 2/3 m/s.
  D) 1/3 m/s.


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chloejackso

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

Answer: C

Answer to Question 2

Answer: A


PhilipSeeMore

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Reply 2 on: Jul 29, 2018
Excellent

smrtceo

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Reply 3 on: Yesterday
:D TYSM

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