A beam resting on two pivots has a length of L = 6.00 m and mass M = 94.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance ℓ = 4.00 m from the left end exerts a normal force n2. A woman of mass m = 51.5 kg steps onto the left end of the beam and begins walking to the right as in the figure below. The goal is to find the woman's position when the beam begins to tip. (e) Using the result of part c and the torque equilibrium equation, with torques computed around the second pivot point, find the woman's position when the beam is about to tip. (part c answer: n1= 0 when the beam is about to tip_ x = _____m (f) Check the answer to part (e) by computing torques around the first pivot point. x = ____m
A beam resting on two pivots has a length of L = 6.00 m and mass M = 94.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance ℓ = 4.00 m from the left end exerts a normal force n2. A woman of mass m = 51.5 kg steps onto the left end of the beam and begins walking to the right as in the figure below. The goal is to find the woman's position when the beam begins to tip.
(e) Using the result of part c and the torque equilibrium equation, with torques computed around the second pivot point, find the woman's position when the beam is about to tip.
(part c answer: n1= 0 when the beam is about to tip_
x = _____m
(f) Check the answer to part (e) by computing torques around the first pivot point.
x = ____m
Except for possible slight differences due to rounding, is the answer the same?
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