(7%) Problem 9: During an ice skating performance, an initially motionless 8/-kg clown throws a fake barbell away horizontally. The clown's ice skates allow her to recoil frictionlessly. with Expert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden. . 4 50% Part (a) If the clown recoils with a speed of 0.515 m/s and the barbell is thrown with a speed of 9.5 m/'s, what is the mass, in kilograms, of the barbell? Grade Summary M2 = Deductions 0% Potential 100% sin() cos() tan() T HOME Submissions cotan() asin() acos () Attempts remaining: 10 (0% per attempt) atan() acotan() sinh() detailed view cosh( tanh() cotanh() + END O Degrees O Radians BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. a 50% Part (b) How much kinetic energy, in joules, is gained by this maneuver