For an object with a mass of $47$ kilograms, the given equation relat…

For an object with a mass of

47

kilograms, the given equation relates the kinetic energy

K

, in joules, of the object to the object's speed

v

, in meters per second, where

K

and

v

are positive. Which equation correctly expresses this object's speed, in meters per second, in terms of the object's kinetic energy, in joules?

v = \frac{2 K}{47}

v = \frac{47}{2 K}

v = \frac{4 7 ^{2}}{2 K}

v = \frac{2 K}{4 7 ^{2}}

Source Texts