A frictionless roller coaster of mas m starts at point A with speed v0. Assume that the roller coaster can be considered as a point particle and that it always remains on the track.(adsbygoogle = window.adsbygoogle || []).push({});

a.) what will be the speed of the roller coaster at point B and C?

P.S.: A and B are both ( h ) unit from the ground, and C is h/2 from the ground, and D is on the ground...B is xy unit from A, and C is xy unit from B too...and yz unit is D from C

Can someone please help me with me? Thank you~

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# Homework Help: Problems on curved mtion

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