Roller coaster Vel. Initial=10m/s, Height initial=100m, and the mass of the coaster is 1000kg all at the starting point (*).(adsbygoogle = window.adsbygoogle || []).push({});

Have to find the speed of coaster at point A, point A's height is the same as the starting points, b is 1/2 of a's height, c's height is zero.

Coaster kinda looks like: * is starting point

..................................................../

......._*_.........._A_......................../

....../----\......./---\......_B_.........../

...../------\__/-----\__/----\......../

__/-------------------------\_c_/

I found Vf of the starting point with vf^2=vo^2+2 a deltaH

and used that Vel for Vo when i do it again but for point h.

what should I do?, my Vf of the starting point i got was 45.4m/s :yuck:

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# Homework Help: Roller coaster problem

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