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9 votes
9 votes
9. What is the kinetic energy of a 2,000 kg boat moving at 7.9 m/s?

User Mohi Rostami
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1 Answer

19 votes
19 votes

Answer:

62410 J

Step-by-step explanation:

Kinetic Energy in Joules is given by the equation


KE = (1)/(2)mv^2\\\\

where

m = mass of the object in kg

v = velocity in m/s

Given m = 2000 kg and v = 7.9 m.s

KE = (1/2) x 2000 x (7.9)²

= 62,410 J or 62.41 KJ

User Ilker Cat
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3.0k points