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alexgriva [62]
2 years ago
15

Calculate the kinetic energy of a boy of mass 65kg running with average speed of 20m/s (3mks)

Mathematics
1 answer:
lesya692 [45]2 years ago
3 0
<h3>Answer:  13000 joules</h3>

This is equivalent to 13 kilojoules.

=======================================================

Work Shown:

m = 65 kg = mass

v = 20 m/s = velocity

KE = kinetic energy

KE = (1/2)*m*v^2

KE = (1/2)*65*(20)^2

KE = 13000 joules

This can be written as 13 kilojoules since "kilo" means "1 thousand"

The abbreviation of the unit "joules" is the letter J.

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