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A yo-yo is rolling without slipping along the table with a center of mass speed…

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Wize University Physics Textbook (Master) > Angular / Rotational Motion

Rolling Motion

3 Activities

A yo-yo is rolling without slipping along the table with a center of mass speed of 10 m/s. A thin string wrapped around the inner hub is attached to a balloon which streams behind the yo-yo. The mass of the balloon is negligible. If the string is coming off the lower side of the inner hub, and the radius of the inner hub is 0.5m and the radius of the outer hub is 0.8m, then the velocity of the balloon with respect to the table is:




→ Vcm=10m/s\rightarrow\ V_{cm}=10m/s
More Rolling Motion Questions:
A spherical ball with a mass of 1kg and radius of 10cm is rolling without slipping down the track shown in the picture starting at rest. (R=2m)
b) What should be the speed of the ball when it gets to the top of the loop to be right at the verge of loosing contact with the track?
A small solid marble of mass m and radius r rolls without slipping along a loop-the-loop track. From what minimum height above the bottom of the track must the marble be released in order not to leave the track at the top of the loop.
You have two spheres of same mass M and radius R, one solid and one hollow, and an incline on which they can roll without slipping. How can you identify both of them on the incline?
A marble starts from rest and rolls without slipping on the loop-the-loop track in the figure. Find the minimum starting height h from which the ball will remain on the track through the loop. Assume the marble's radius is small compared with R.
Rotational dynamics
A solid, uniform sphere of mass 1.0 kg and radius 1.5 m rolls without slipping down an inclined plane of height 5.0 m. What is the angular velocity of the sphere at the bottom of the inclined plane?
A coin and a ring, each having the same mass and radius are placed at the top of an incline. If both objects are released at the same time, which object will reach the bottom of the incline first?
Enter either coin, ring, both or can't tell as your answer.
Why? (See solution)