Physics, 15.04.2020 02:35 mdaniella522
A 107 kg 107 kg horizontal platform is a uniform disk of radius 1.77 m 1.77 m and can rotate about the vertical axis through its center. A 63.1 kg 63.1 kg person stands on the platform at a distance of 1.11 m 1.11 m from the center, and a 27.9 kg 27.9 kg dog sits on the platform near the person 1.31 m 1.31 m from the center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis.
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If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
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A 107 kg 107 kg horizontal platform is a uniform disk of radius 1.77 m 1.77 m and can rotate about t...
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