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Q. A baseball outfielder throws a 0.150 kg baseball at a speed of 44.0 m/s and an initial angle of 27.0°. What is the kinetic energy of the baseball at the highest point of its trajectory?

Q. A 5000 kg helicopter accelerates upward at 0.50 m/s2 while lifting a 2000 kg car. What is the lift force exerted by the air on the rotors? What is the tension in the cable that connects the car to the helicopter?

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