-Conceptual in Exams 50 minutes 15 questions 30 Points Time Remaining 35 minutes

Question

-Conceptual in Exams 50 minutes 15 questions 30 Points Time Remaining 35 minutes Exam-Conceptual Pages laveProgesel Last saved at 4:06 PM Previous 61718191101 1112113 1411 15) A stone is released from rest at a height h at the left side of a loop-the-loop, as shown in pt) the figure. There is no appreciable friction from the track or from air resistance. If the radius of the loop is R, what is the maximum radius R for which the stone will not fall off the track at the top of the loop? 0.25 h 2h 0.5h 25h This is the end of the test You can go back and reviewlchange your anserers, or you can submit your woark Once you submit the test for gr to change your answers and will not be able to review the questions or enswers untl the graced test is returned to you 0 9 0

Explanation / Answer

Here Energy conservation applied

Energy at height h = energy at top of loop the loop

mgh = mgh'

mgh = mg 2R

h = 2R

R = h/2

R = .5 h

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