1. A torque of 40 Nm is applied to a grinding wheel with moment of inertia 30 kg m² for 30 s. a) If it starts from rest, what is the angular velocity of the wheel after the torque is removed? rad/s W = b) Through what angle does the grinding wheel move, while the torque is being applied? Δθ = rad c) What is the KE of the wheel after 30 s? KE = ✓J

Physics for Scientists and Engineers: Foundations and Connections
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Chapter13: Rotation Ii: A Conservation Approach
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1. A torque of 40 Nm is applied to a grinding wheel with moment of inertia 30 kg m² for 30 s.
a) If it starts from rest, what is the angular velocity of the wheel after the torque is removed?
W =
rad/s
b) Through what angle does the grinding wheel move, while the torque is being applied?
ΔΘ =
rad
c) What is the KE of the wheel after 30 s?
KE =
[✔]
Transcribed Image Text:1. A torque of 40 Nm is applied to a grinding wheel with moment of inertia 30 kg m² for 30 s. a) If it starts from rest, what is the angular velocity of the wheel after the torque is removed? W = rad/s b) Through what angle does the grinding wheel move, while the torque is being applied? ΔΘ = rad c) What is the KE of the wheel after 30 s? KE = [✔]
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