A ladybug sits halfway between the rotational axis and the outer edge of the turntable table. The ladybug has a tangential speed of in 0.9 m/s, what will be tangential speed of her friend who sits at the outer edge?

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Chapter10: Rotational Motion And Angular Momentum
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Problem 26PE: While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the...
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Rotational motion and momentum:
a. A ladybug sits halfway between the rotational axis and the outer edge of the turntable table. The ladybug has a tangential speed of in 0.9 m/s, what will be tangential speed of her friend who sits at the outer edge? 
b.You lift the child by using your elbow joint (pivot point). If the child's mass is B kg and distance from child to elbow joint is 0.40 m, calculate the torque? 
C.A ball slides with initial velocity 0.9 m/s on a frictionless surface and collides with another identical ball of mass at rest. The balls stick together after the collision. Calculate the final velocity of the balls? 

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