Physics, 27.12.2019 04:31 nommies005
Aroller coaster car may be approximated by a block of mass m. thecar, which starts from rest, is released at a height h above theground and slides along a frictionless track. the car encounters aloop of radius r, shown. assume that the initial height h is greatenough so that the car never losses contact with the track.
find an expression for the kinetic energy of the car at the top ofthe loop (express in terms of m, g,h, r).
find the minimum initial height h at which the car can be releasedthat still allows the car to stay in contact with the track at thetop of the loop (express in terms of r).
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A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
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Aroller coaster car may be approximated by a block of mass m. thecar, which starts from rest, is rel...
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