44 (a) During an ice skating performance, an initially motionless 80.0-kg clown throws afake barbell away. The clown's ice skates allow her to recoil frictionlessly. If the clownrecoils with a velocity of 0.500 m/s and the barbell is thrown with a velocity of 10.0 m/s,what is the mass of the barbell? (4.00 kg)(b) How much kinetic energy is gained by this maneuver? (210 J)(c) Where does the kinetic energy come from? (The clown's muscles)

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Answered: 44 (a) During an ice skating…

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