Answered

You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. With how much energy does it fly away?



Answer :

regalmocha17

Answer:

KE = 945 J

Explanation:

Equation to use:

[tex]KE = \frac{1}{2}mv^2\\[/tex]

Knowns:

[tex]m = 2.1 kg \\v = 30m/s[/tex]

Plug in values and solve.

[tex]KE = \frac{1}{2}(2.1)(30^2)\\KE = 945 J[/tex]

KE = 945 J

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