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when it strikes balls B and C, which are at rest and aligned as shown. Knowing that
after the collision the three balls move in the directions indicated and assuming
frictionless surfaces and perfectly elastic impact (i.e., conservation of energy),
determine the magnitudes of the velocities uA, 'o B , and v 6 .
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2' Knowing that crank AB has a constant angular
dete-rmine
velocify of 150 rpm counterclockwise,
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3. A 3 m radius
drum is rigldly attached to a 5 m radius drum as shown. One of
drums rolls without sliding on the surface shown, and a cord is wound around
other drum. Knowing that at the instant shown end D of the cord has a velocity of
m/s and an acceleration of I mf s2, both directed to the left, determine
accelerations of points A, B, and C of the drums.
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