A 0.15 kg baseball has a kinetic energy of 18 J. What is its speed? (Round you answer to one decimal place)

Question

Physics

Leilani Horn

13 July, 13:12

A 0.15 kg baseball has a kinetic energy of 18 J. What is its speed? (Round you answer to one decimal place)

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Answers (1)

Know the Answer?

Simeon Cobb · Answer 1

Answer: The speed is 15.5 m/s

Explanation:

The kinetic energy can be written as:

K = (1/2) * m*v^2

where m is the mass and v is the speed.

Then we have that:

18 j = (1/2) * 0.15kg*v^2

Now we solve this for v.

√ (18*2/0.15) = v

15.5 m/s = v