A metal smith is using a bench grinder on a newly forged knife. The knife applies a net torque (which varies in time) on the grinding wheel, shown by the graph below. Note that the grinder is not plugged in; it's spinning freely. ET (Nm)4 '40 ext ,0 30 20 10 time (s) 2 4 6. 8 10 12 The moment of inertia is a constant 0.550 k-gm2. What is the angular velocity of the grinder wheel after 10 seconds?

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Chapter1: Units, Trigonometry. And Vectors
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A metal smith is using a bench grinder on a newly forged
knife. The knife applies a net torque (which varies in time) on the grinding wheel,
shown by the graph below. Note that the grinder is not plugged in; it's spinning
freely.
ET (Nm)nt
401
ext ,0
30
20
10
time (s)
2
4 6
8
10 12
The moment of inertia is a constant 0.550 k-gm2. What is the angular
velocity of the grinder wheel after 10 seconds?
Transcribed Image Text:A metal smith is using a bench grinder on a newly forged knife. The knife applies a net torque (which varies in time) on the grinding wheel, shown by the graph below. Note that the grinder is not plugged in; it's spinning freely. ET (Nm)nt 401 ext ,0 30 20 10 time (s) 2 4 6 8 10 12 The moment of inertia is a constant 0.550 k-gm2. What is the angular velocity of the grinder wheel after 10 seconds?
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