The man moved from the bow of the boat to the stern. How far will the boat move if: boat mass = M, person’s mass
| January 17, 2021 | education
The man moved from the bow of the boat to the stern. How far will the boat move if: boat mass = M, person’s mass = m, boat length = l. Disregard water resistance
Human speed v = l / t, boat speed V = s / t, t-travel time, the same for both the boat and the person. According to the law of conservation of momentum, we obtain:
MV-mv = 0
MV = mv
M * s / t = m * l / t
From here we have that the distance the boat will move (s) is:
s = m * l / M
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