serenity505garcia
serenity505garcia serenity505garcia
  • 22-10-2020
  • Physics
contestada

A table tennis ball has a mass of about 0.00245 kg.
Suppose the ball is hit across the table with a velocity of
4.0 m/s. What is the ball's kinetic energy?

Respuesta :

Stephen46
Stephen46 Stephen46
  • 27-10-2020

Answer:

The answer is 0.02 J

Explanation:

The kinetic energy of an object can be found by using the formula

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

where

m is the mass

v is the velocity

From the question we have

[tex]KE = \frac{1}{2} \times 0.00245 \times {4}^{2} \\ = \frac{1}{2} \times 0.00245 \times 16 \\ = 0.00245 \times 8 \\ = 0.0196 \: \: \: \: \: \: \: \: \: \: [/tex]

We have the final answer as

0.02 J

Hope this helps you

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