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3 years ago

An object with a kinetic energy of 1125J has a mass of 250kg. What is its velocity?

Physics

1 answer:

Elena-2011 [213]3 years ago

7 0

Answer:

3 m/s

Explanation:

Kinetic energy of a body is given by the formula $K= {1\over2} m v^2$ . Let's replace everything we have and solve for what's left.

$1125J = {1\over2}\cdot 250 kg \cdot v^2$

$v^2 ={ 1125 \cdot 2 \over 250}}$ or $v= 3 {m \over s}$

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