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kenny6666 [7]
3 years ago
5

What is the kinetic energy of a 3 kg ball that is rolling at 3 m/s?

Physics
2 answers:
prisoha [69]3 years ago
7 0

Answer:

\Huge \boxed{\mathrm{13.5 \ Joules}}

Explanation:

\sf Kinetic \ energy \ (J)=\frac{1}{2}  \cdot mass \ (kg) \cdot (velocity \ (m/s)) ^2

\mathrm{KE=\frac{1}{2} mv^2}

The mass of the ball is 3 kg.

The velocity of the ball rolling is 3 m/s.

\mathrm{KE=\frac{1}{2} \cdot 3 \cdot 3^2}

Evaluating and solving for kinetic energy.

\mathrm{KE=\frac{1}{2} \cdot 3 \cdot 9}

\mathrm{KE=\frac{1}{2} \cdot 27}

\mathrm{KE} =13.5

The kinetic energy of the ball is 13.5 Joules.

blagie [28]3 years ago
7 0

Answer:

Kinetic energy =1/2mv^2.

1/2×3×3^2.

1/2×27=13.5 or 13 whole number 1/2.

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