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What factors impact the kinetic energy of an object?

A. Mass and height
B. Weight and height
C. Mass and speed
D. Weight and speed

3 answers

The kinetic energy of an object is primarily influenced by its mass and speed. The formula for kinetic energy (KE) is given by:

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

where \( m \) is the mass of the object and \( v \) is its speed.

Therefore, the correct answer is:

C. Mass and speed

are you sure this is correct

Yes, I am sure. The formula for kinetic energy clearly shows that it depends on mass and the square of the velocity (speed) of an object. To summarize:

  • Kinetic energy increases with greater mass (larger \( m \)).
  • Kinetic energy increases with increased speed (as \( v \) is squared in the formula).

Thus, factors that impact the kinetic energy of an object are indeed mass and speed, making option C the correct choice. If you have any further questions or need clarification, feel free to ask!