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a) Calculate the angular momentum (in kg·m2/s) of an ice skater spinning at 6.00 rev/s given...

a) Calculate the angular momentum (in kg·m2/s) of an ice skater spinning at 6.00 rev/s given his moment of inertia is 0.450 kg·m2. Answer to 3 significant figures.

(b) He reduces his rate of spin (his angular velocity) by extending his arms and increasing his moment of inertia. Find the value of his moment of inertia (in kg·m2) if his angular velocity drops to 1.35 rev/s. Answer to 3 significant figures.

c) Suppose instead he keeps his arms in and allows friction with the ice to slow him to 3.00 rev/s. What average torque (in N·m) was exerted if this takes 16.0 seconds? Answer to 3 significant figures.

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