91.0k views
3 votes
What is the kinetic energy of a 18 kg dog that is running at a speed of 8.5 m/s (about 19 mi/h)?

User ZaxR
by
9.0k points

1 Answer

3 votes

Final answer:

The kinetic energy of an 18 kg dog running at a speed of 8.5 m/s is calculated using the formula KE = \(\frac{1}{2}mv^2\) and is found to be 650.25 joules.

Step-by-step explanation:

The kinetic energy of an object can be calculated using the formula KE = \(\frac{1}{2}mv^2\), where m is the mass of the object and v is its velocity. In the case of an 18 kg dog running at a speed of 8.5 m/s, the kinetic energy can be calculated by substituting the given values into the formula: KE = \(\frac{1}{2} \times 18 kg \times (8.5 m/s)^2\).

Upon computing, KE = \(\frac{1}{2} \times 18 kg \times 72.25 m^2/s^2\) = \(9 kg \times 72.25 m^2/s^2\) = 650.25 joules. Therefore, the kinetic energy of the dog is 650.25 joules.

Subsequently, the mention correct option answer in the final answer is 650.25 joules.

User ThottChief
by
8.0k points

No related questions found