An Athlete Can Twirl a Baton So That It Reaches

question 14

Multiple Choice

An athlete can twirl a baton so that it reaches an angular velocity of 12 rad/s from rest in 0.5 s. If the length of a uniform baton is 0.8 m and the mass is 0.5 kg, what is the torque needed to reach the angular velocity?

• A) 0.4 N ⋅m
• B) 0.5 N ⋅m
• C) 0.8 N ⋅m
• D) 0.64 N ⋅m
• E) 1.24 N ⋅m

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