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Answered

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A roller coaster begins at rest 120 m above the ground, as
shown. Assume no friction from the wheels and air, and that no energy is lost to heat, sound, and so on. The radius of the loop is 40 m. Find the speed of the roller coaster at points E and F.
Note:- Use g= 10 m/s2.

Sagot :

Answer:

B= 34.6 m/s

C= 49 m/s

D= 28.3 m/s

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