An object has a kinetic energy of 25 j and a mass of 34 kg, how fast is the object moving?

1 Answer
Daniel H.
Feb 18, 2018

#KE = 1/2 mv^2#., rearrange the question and solve for velocity

Explanation:

In this case, #KE = 1/2 mv^2->25J=1/2*34kg*v^2#

Then , #50J=34kg*v^2#

#v^2={50kg*m^2/s^2}/{34kg}#

I'll let you finish the problem. Your units will be in m/s. Also, since the problem is asking for speed and not velocity, use the positive square root.

Related questions
Impact of this question
15664 views around the world
You can reuse this answer
Creative Commons License