1)when is a body in equilibrium? Can a body on which a single force acts in equi
ID: 1769336 • Letter: 1
Question
1)when is a body in equilibrium? Can a body on which a single force acts in equilibrium? Can a body on which two forces act be in equilibrium? 2)the mass hanger is in equilibrium. Assume that the mass of the horizontal bar is negligible. Find Fup and the ratio of b/a.1)when is a body in equilibrium? Can a body on which a single force acts in equilibrium? Can a body on which two forces act be in equilibrium? 2)the mass hanger is in equilibrium. Assume that the mass of the horizontal bar is negligible. Find Fup and the ratio of b/a.
Explanation / Answer
when the net torque = 0
yes
2) Fy net = 0
Fup = (0.0555 + 0.145)*9.8 = 1.9649 N
about left end
Fup*a = 0.145*9.8*(a+b)
1.9649*a = 1.421*(a+b)
1.9649*a = 1.421*a + 1.421*b
(1.9649-1.421)*a = 1.421*b
b/a = (1.9649-1.421)/1.421
b/a = 0.3827
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