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A 81 -kg fisherman in a 133 -kg boat throws a package of mass m = 15 kg horizont

ID: 2144487 • Letter: A

Question

A 81-kg fisherman in a 133-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.1 m/s as in the figure below. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown.





magnitude     m/s direction     ---Select---toward the righttoward the left A 81-kg fisherman in a 133-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.1 m/s as in the figure below. Neglecting water resistance, and assuming the boat is at rest before the package is thrown, find the velocity of the boat after the package is thrown.

Explanation / Answer

using th econservation of momnetum


total initial momentum= 0

Total final momnetum= ( 81+ 133)V + 15(4.1)


( 81+ 133)V + 15(4.1) =0


solving for v,


v = - 0.287m/s apprx ( towards left)


v= 0.287 m/s towards left

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