As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 6.3 m. The beam has a mass M = 95.0 kg, a length L = 14.0 m, and a girl of mass m = 62.0 kg is walking from the left end toward the right. (a) Calculate the normal force exerted on the beam by the pillar on the right, when the beam is on the verge of tipping. N (b) Calculate the girl's position, when the beam is on the verge of tipping. m

As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 6.3 m. The beam has a mass M = 95.0 kg, a length L = 14.0 m, and a girl of mass m = 62.0 kg is walking from the left end toward the right. (a) Calculate the normal force exerted on the beam by the pillar on the right, when the beam is on the verge of tipping. N (b) Calculate the girl's position, when the beam is on the verge of tipping. m

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