A man whose mass is 74 kg and a woman whose mass is 54 kg sit at opposite ends o

ID: 2116329 • Letter: A

Question

A man whose mass is 74 kg and a woman whose mass is 54 kg sit at opposite ends of a canoe 5 m long, whose mass is 21 kg.

(a) Relative to the man, where is the center of mass of the system consisting of man, woman, and canoe? (Hint: Choose a specific coordinate system with a specific origin.)

Distance of center of mass from left end of boat = m

(b) Suppose that the man moves quickly to the center of the canoe and sits down there. How far does the canoe move in the water? It helps a great deal to draw a diagram of the situation before and after the move.

Distance the boat moves = m A man whose mass is 74 kg and a woman whose mass is 54 kg sit at opposite ends of a canoe 5 m long, whose mass is 21 kg.

(a) Relative to the man, where is the center of mass of the system consisting of man, woman, and canoe? (Hint: Choose a specific coordinate system with a specific origin.)

Distance of center of mass from left end of boat = m

(b) Suppose that the man moves quickly to the center of the canoe and sits down there. How far does the canoe move in the water? It helps a great deal to draw a diagram of the situation before and after the move.

Explanation / Answer

from the man it is 2.17m

the boat moves 8.8 m to the left

this is simple if u co ordinate system at the center then the center of mass =(-0.33,0)

center of doesnt change due to internal forces

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