A force (represented by FT→) is applied to a cord wrapped around a pulley (moment of inertia 0.385 kg⋅m2 and radius R0= 33.0 cm), see the figure. (Figure 1) Suppose the force FT in the cord hanging from the pulley is given by the relation FT=2.80t−0.28t2 (newtons) where t is in seconds. If the pulley starts from rest, what is the linear speed of a point on its rim 8.6 s later? Ignore friction. Express your answer to two significant figures and include the appropriate units.
A force (represented by FT→) is applied to a cord wrapped around a pulley (moment of inertia 0.385 kg⋅m2 and radius R0= 33.0 cm), see the figure. (Figure 1) Suppose the force FT in the cord hanging from the pulley is given by the relation FT=2.80t−0.28t2 (newtons) where t is in seconds. If the pulley starts from rest, what is the linear speed of a point on its rim 8.6 s later? Ignore friction. Express your answer to two significant figures and include the appropriate units.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 11P: A disk 8.00 cm in radius rotates at a constant rate of 1200 rev/min about its central axis....
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A force (represented by FT→) is applied to a cord wrapped around a pulley (moment of inertia 0.385 kg⋅m2 and radius R0= 33.0 cm), see the figure. (Figure 1) Suppose the force FT in the cord hanging from the pulley is given by the relation FT=2.80t−0.28t2 (newtons) where t is in seconds.
If the pulley starts from rest, what is the linear speed of a point on its rim 8.6 s later? Ignore friction.
Express your answer to two significant figures and include the appropriate units.
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