A canoeist on a lake throws a 0.145 kg baseball at 40.0 m/s to a friend in a different canoe. Each canoe with its contents has a mass of 120 kg, and is at rest initially. How fast is the first canoe moving after the pitch, assuming no friction with the water?

A. 0.048 m/s
B. 0.33 m/s
C. 20 m/s
D. 40 m/s

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Question

A canoeist on a lake throws a 0.145 kg baseball at 40.0 m/s to a friend in a different canoe. Each canoe with its contents has a mass of 120 kg, and is at rest initially. How fast is the first canoe moving after the pitch, assuming no friction with the water?

A. 0.048 m/s
B. 0.33 m/s
C. 20 m/s
D. 40 m/s

** :/

michele_laino · Answer

here, since we can neglet any friction forces acting on our canoe, we have to apply the theorem of conservation of total momentum

anonymous · Answer

ok!

michele_laino · Answer

here is the situation described in your problem:
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