Circular Motion
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Two pulleys connected by a belt have radii R1 = 10 cm and R2 = 20 cm.
The first makes 40 rpm. Assuming that the connection belt is not elastic and there is no slip,
Determine:
a) What is the ratio between the speeds of a point on the surface of the first pulley (P1) and a point on the surface of the second pulley (P2)?
b) What is the ratio between frequencies of the pulleys?
c) What is the number of revolutions of the second pulley?
d) What is the angular velocity of each pulley?
a) What is the ratio between the speeds of a point on the surface of the first pulley (P1) and a point on the surface of the second pulley (P2)?
b) What is the ratio between frequencies of the pulleys?
c) What is the number of revolutions of the second pulley?
d) What is the angular velocity of each pulley?
A pulley A, of radius 0.15 m, begins its motion from the rest with a constant angular acceleration of
2 rad/s2. This pulley is connected to a wheel B, of radius 0.40 m, by a belt that spins
without slip. Determine the speed and acceleration of a point P over wheel B after two
revolutions.
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