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At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 183
Question
At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 183 lb . During the storm, the crewman finds a maximum reading of 230 lb and a minimum reading of 138 lb .A. Find the maximum upward acceleration experienced by the crewman
B. Find the maximum downward acceleration experienced by the crewman
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Physics
3 years
2021-08-25T01:48:22+00:00
2021-08-25T01:48:22+00:00 1 Answers
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Answer:
Explanation:
In calm water there is no acceleration so reading
R = mg = 183
m = 183 / 32
At maximum upward acceleration reading
R₁ = mg + ma
= 183 + (183 / 32 ) x a
230 = 183 + (183 / 32 ) x a
a = 8.22 ft /s²
B )
In case of downward acceleration , reading
R₂ = mg – ma
138 = 183 – (183/32) a
a = 7.87 m /s²