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10 Nov 2019

A solid sphere marble of radius 0.5 cm and mass 3 g starts fromrest and then rolls down a frictionless track and around the insideof a loop-the-loop of radius 45 cm. From what minimum height (incm) must the marble have started if it is to make it around theloop-the-loop without falling off the track?

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Lelia Lubowitz
Lelia LubowitzLv2
20 Jan 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions


(this is a sketch of the figure in the book)

this problem reads as follows:

A solid marble starts from rest and rolls without slipping onaloop-the-loop track. Find the minimum starting height of themarblefrom which it will remain on the track through the loop.Assume themarble radius is small compared with the radius of theloop, R.

A small solid marble of mass  and radius rolls down along the loop track, without slipping. Find the height above the base, from where it has to start rolling down the incline such that the sphere just complete the vertical circular loop of radius  

A solid marble of mass m = 15 kg and radius r = 6 cm will rollwithout slipping along the loop-the-loop track shown in the figureif it is released from rest somewhere on the straight section oftrack. From what minimum height h above the bottom of the trackmust the marble be released to ensure that it does not leave thetrack at the top of the loop? The radius of the loop-the-loop is R= 1.05 m.
If the marble is released from height 6R above the bottom of thetrack, what is the horizontal component of the force acting on itat point Q?

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