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Author Question: A solid sphere, a solid cylinder, and a hoop all have the same mass and radius. Each are sent down ... (Read 70 times)

Redwolflake15

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on: Jul 28, 2018
A solid sphere, a solid cylinder, and a hoop all have the same mass and radius. Each are sent down identical inclined planes starting from rest. Their kinetic energies at the bottom of the incline are Ksphere, Kcylinder, and Khoop. Which of the following is true?
 a. Ksphere > Kcylinder
  b. Khoop > Ksphere
  c. Khoop > Kcylinder
  d. Kcylinder > Khoop
  e. No answer above is correct.

Question 2

When a wheel is rolling without slipping, the magnitude of its velocity relative to the ground is greatest at
 a. the point in contact with the ground. b. the point at the center of the wheel.
  c. the point at the top of the wheel opposite to the point in contact with the ground. d. the point farthest forward from the center of mass of the wheel.
  e. the point farthest behind the center of mass of the wheel.


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chreslie

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Reply #1 on: Jul 28, 2018
Answer to Question 1

E

Answer to Question 2

C


Redwolflake15

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


chreslie

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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