Question

What is the motional kinetic energy of a 25kg
object moving at a velocity of 10m/s?
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Answer 1

My answer is 1250J. By doing 1/2 × 25 × 10²

Answer 2

`ke = (1)/(2) * mv {}^(2)`

kinetic energy : ke

m : mass ( 25kg )

v : velocity ( 10 m/s )

`(1)/(2) * 25 * {10}^(2)`

= 1250 (J )