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Zach981
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This a question from my 131 "masteringphysics.com" hw.
A cylindrical hoop has radius 10.0 cm and mass 0.550 kg. It rolls from rest a distance of 5.70 m along a board which is tipped up by an angle 18.0 degrees from horizontal. Regard the hoop as being much thinner (in the radial direction) than its radius.
Parts A and B wanted me to find the total kinetic energy and velocity at the base of the incline, I already did these. KE = 9.49 J and v=4.15 m/s
However part C wants me to:
What minimum value must the coefficient of static friction have if the hoop is to roll without slipping?
I have no idea how to approach this part.
A cylindrical hoop has radius 10.0 cm and mass 0.550 kg. It rolls from rest a distance of 5.70 m along a board which is tipped up by an angle 18.0 degrees from horizontal. Regard the hoop as being much thinner (in the radial direction) than its radius.
Parts A and B wanted me to find the total kinetic energy and velocity at the base of the incline, I already did these. KE = 9.49 J and v=4.15 m/s
However part C wants me to:
What minimum value must the coefficient of static friction have if the hoop is to roll without slipping?
I have no idea how to approach this part.