Homework Answers
Rotational kinetic energy of an object is given by-
K.E. = IW2/2
I = moment of inertial
W = angular velocity
For solid sphere distribution of mass is symmetrical about its rotation axis in compare than sphere which have hole so moment of inertia is larger for second sphere.
And both have same angular velocity.
So for sphere that have hole will have more rotational kinetic energy.
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Help 13.Two spheres of mass M and radius R are both released from rest at the...
Help
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help 13.Two spheres of mass M and radius R are both released from rest at the...
help
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rotate around an
axis through its center, perpendicular to the disk surface. At
time t = 0 s, the
disk is not turning. It has a constant angular acceleration ↵
and by t = 20 s it
has completed 500 complete turns.
Calculate the angular acceleration ↵.
Calculate the angular velocity ! at t = 20 s.
Calculate the rotational kinetic energy at t...
Help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
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each other about the common axis of summetry. The rotation can be
precisely controlled through a built-in motor. Both cyllinders can
be asuumed to be uniform; they have the same mass, m = 10.0 kg, and
the same radius rc = 0.30m. The top cylinder has attached to it two
balls, each of which has mass 1.0 kg and radius rb = 0.1m. Each
ball is fastened to the end...
help
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