Crezell Crezell

18-12-2022
Physics

contestada

1. The figure below shows a partial profile of a roller-coaster. The coaster begins from rest at position A at height ha
30.0 m and hb 10.0 m.

a) Determine the speed of the coaster at position B. Friction and air resistance are negligible.

b) If the efficiency of the coaster is 55%, what would be the value of the coaster speed at point B?

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