An Athletic Can Twirl a Baton So That It Reaches

question 55

Multiple Choice

An athletic 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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