![Q4. A cannon mounted on wheels has a mass of 1380 kg. It shoots a 5.45-kg shell at 190 m/s lforward]. What will be the velocity of the cannon immediately after firing the shelr? (Read Examole9.5 on textbook)](http://img.homeworklib.com/questions/b6b66ea0-705b-11ea-bce6-8516fa42234d.png?x-oss-process=image/resize,w_560)
Homework Answers
From momentum coservaticon
Momentum before firing = momentum after firing
0 = mv +MV
0 = 5.45*190 + 1380*V
V= - 0.75 m/s
Cannon moves back with a speed 0.75 m/s
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