A small block, initially at rest at point A, slides down a curve leading to a half-circle of radius R 6.75 m. The surface is frictionless, with the exception of a horizontal segment BC of length s=22.5 m, which has the coefficient of friction equal u=0.145. A. What is the minimal height (h) for which the block reaches the top of the semicircle, point D? B. For the minimal height calculated in Part (a), what is the speed at point C? Please answer both A and B.

A small block, initially at rest at point A, slides down a curve leading to a half-circle of radius R 6.75 m. The surface is frictionless, with the exception of a horizontal segment BC of length s=22.5 m, which has the coefficient of friction equal u=0.145. A. What is the minimal height (h) for which the block reaches the top of the semicircle, point D? B. For the minimal height calculated in Part (a), what is the speed at point C? Please answer both A and B.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 65PQ: A 50.0-g toy car is released from rest on a frictionless track with a vertical loop of radius R. The...

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