How fast is this roller coaster moving at given point

Reference no: EM13291966

A 350-kg roller coaster starts from rest at point A and slides down the frictionless loop-the-loop shown in Fig. P7.45.

(a) How fast is this roller coaster moving at point B?

(b) How hard does it press against the track at point B?

Reference no: EM13291966

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