Physics, 12.11.2019 22:31 nancieabreu4491
Aman 6 feet tall walks at a rate of 6 feet per second away from a light that is 15 feet above the ground.
(a) when he is 10 feet from the base of the light, at what rate is the tip of his shadow moving?
(b) when he is 10 feet from the base of the light, at what rate is the length of his shadow changing?
Answers: 1
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Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?
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Physics, 22.06.2019 09:00
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Aman 6 feet tall walks at a rate of 6 feet per second away from a light that is 15 feet above the gr...
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