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Author Question: A cannon of mass 1 300 kg fires a 13.6-kg shell with a velocity of 180 m/s at an angle of 45 above ... (Read 172 times)

jrubin

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on: Jul 28, 2018
A cannon of mass 1 300 kg fires a 13.6-kg shell with a velocity of 180 m/s at an angle of 45 above the horizontal. Find the recoil velocity of the cannon across the level ground.
 a. 1.88 m/s
  b. 1.33 m/s
  c. 0.376 m/s
  d. 0.666 m/s
  e. 0.942 m/s

Question 2

A 75.0-kg swimmer dives horizontally off a 465-kg raft initially at rest. If the diver's speed immediately after leaving the raft is 5.00 m/s, what is the corresponding raft speed?
 a. 31.0 m/s
  b. 375 m/s
  c. 0.806 m/s
  d. 1.24 m/s
  e. 5.00 m/s


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bobsmith

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


jrubin

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Reply 2 on: Jul 28, 2018
Excellent

ghepp

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Reply 3 on: Yesterday
Wow, this really help

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