Physics, 28.01.2021 09:20 johnzman10
A wooden plank rests in equilibrium on two rocks on opposite sides of a narrow
stream. Three forces P, Q and Ract on the plank.
P
RA
plank
Q
How are the sizes of the forces related?
AP+ Q = R
BP+R =
CP= Q = R
DP= Q +R
Answers: 2
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A wooden plank rests in equilibrium on two rocks on opposite sides of a narrow
stream. Three forces...
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