A ball with a mass of 2.20 kg is moving with velocity (5.60î – 1.20ĵ) m/s. (HINT: v² = ✔ V.) . (a) What is the ball's kinetic energy (in J) at this velocity? J (b) Find the net work (in J) on the ball if its velocity changes to (8.001 + 4.00ĵ) m/s. J

University Physics Volume 1
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter8: Potential Energy And Conservation Of Energy
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A ball with a mass of 2.20 kg is moving with velocity (5.601 – 1.20ĵ) m/s. (HINT: v² = v.v.)
(a) What is the ball's kinetic energy (in J) at this velocity?
J
(b) Find the net work (in J) on the ball if its velocity changes to (8.00î + 4.00ĵ) m/s.
J
Transcribed Image Text:A ball with a mass of 2.20 kg is moving with velocity (5.601 – 1.20ĵ) m/s. (HINT: v² = v.v.) (a) What is the ball's kinetic energy (in J) at this velocity? J (b) Find the net work (in J) on the ball if its velocity changes to (8.00î + 4.00ĵ) m/s. J
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