Question

A 6.7 kg object moves with a velocity of 8 m/s. what is its kinetic energy

Answer 1

The Correct answer to this question for Penn Foster Students is: 214.4 J

Answer 2

Answer:

$E_k=214.4 J$

Explanation:

Kinetic energy is a form of energy, known as motion energy. The kinetic energy of an object is that produced by its movements, it depends on the mass and speed of the object.  In formula form:

$E_k= \frac{1}{2} m v^2$

$m=Mass\hspace{3}of\hspace{3}the\hspace{3}object\\v=Velocity\hspace{3}of\hspace{3}the\hspace{3}object$

Replacing the data provided, the kinetic energy is:

$E_k=\frac{1}{2} (6.7)(8^{2} )=214.4J$