A mass m hangs from string wrapped around a pulley of radius R. The pulley has a moment of inertia / and its pivot is frictionless. Because of gravity, the mass accelerates downward, and the pulley rotates. Which has greater magnitude, the string tension Fr or the weight mg? A. Fr= mg B. FT mg M m21
A mass m hangs from string wrapped around a pulley of radius R. The pulley has a moment of inertia / and its pivot is frictionless. Because of gravity, the mass accelerates downward, and the pulley rotates. Which has greater magnitude, the string tension Fr or the weight mg? A. Fr= mg B. FT mg M m21
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Transcribed Image Text:A mass m hangs from string wrapped around a pulley of radius
R. The pulley has a moment of inertia / and its pivot is
frictionless. Because of gravity, the mass accelerates
downward, and the pulley rotates. Which has greater
magnitude, the string tension Fr or the weight mg?
A. Fr= mg
B. Fr< mg
C. Fr > mg
M
771
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