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1 year ago

The kinetic energy(Jules) of an object can be calculated using the following formula:

Mathematics

1 answer:

weeeeeb [17]1 year ago

3 0

Answer:

75 J

Step-by-step explanation:

You want to know the kinetic energy in joules of a 6 kg ball that has a velocity of 5 m/s. The formula is given.

<h3>Kinetic energy</h3>

Kinetic energy is energy of motion. It is jointly proportional to mass and the square of velocity. The value is given by the formula ...

KE = 1/2·mv²

For the given values of mass (6 kg) and velocity (5 m/s), the kinetic energy is ...

$KE=\dfrac{1}{2}(6\text{ kg})(5\text{ m/s})^2=75\text{ kg$\cdot$m$^2$/s$^2$}=\boxed{75\text{ J}}$

The kinetic energy of the ball is 75 joules.

<em>Additional comment</em>

The unit joule (J) is a derived unit of energy equal to 1 kg·m²/s²

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