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1. tron returns to throw his glowing disc. his disc weighs 2 kg and has a velocity of 20 m/s when he hurls it. what is the kinetic energy of the disc?

1. tron returns to throw his glowing disc. his disc weighs 2 kg and has a velocity of 20 m/s when he hurls it. what is the kinetic energy of the disc?
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2 votes
1. tron returns to throw his glowing disc. his disc weighs 2 kg and has a velocity of 20 m/s when he hurls it. what is the kinetic energy of the disc?

asked
User Galloglass
by
8.0k points

1 Answer

5 votes

Answer:

400 J

Step-by-step explanation:

KE = 1/2mv² = 1/2(2 kg)(20 m/s)² = 400 J

answered
User Amateur
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8.5k points
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