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11 July, 18:40

A 160 kilogram cannon fires a 30 kilogram cannonball with a speed of 45 m/s at an angle of 30 degrees with the horizontal. In what direction and at what speed does the cannon recoil?

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  1. 11 July, 18:45
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    By newton's 3rd law, the recoil will be in the opposite direction and with the same mass speed : 160*V=30*45 where V is the speed of the cannon due to the recoil hence V=30*45/160~8.4 m/s
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