Which of the following expressions gives the speed of a body of mass when its kinetic…

PHYSICS · Single correct · AP · Physics C: Mechanics · Work Energy and Power · Work Energy and Power

Problem

Which of the following expressions gives the speed

v

of a body of mass

m

when its kinetic energy is

K

? (a)

v=\sqrt{\dfrac{K}{m}}

(b)

v=2\sqrt{\dfrac{K}{m}}

(c)

v=\sqrt{\dfrac{2K}{m}}

(d)

v=\sqrt{\dfrac{K}{2m}}