I need help!!!!
The general formula for kinetic energy is k = 0.5mv2 where k = kinetic energy, m = mass, and c = velocity. Solve k = 0.5mv2 for v

Question

I need help!!!!
The general formula for kinetic energy is k = 0.5mv2 where k = kinetic energy, m = mass, and c = velocity. Solve k = 0.5mv2 for v

anonymous · Answer

here are the options

whpalmer4 · Answer

k = (1/2) m v^2

solve for v.  start by solving for v^2 — divide both sides by (1/2) and m...what do you get?

whpalmer4 · Answer

(remember that dividing by 1/2 is like multiplying by 2)

anonymous · Answer

i don't know????

whpalmer4 · Answer

what is k divided by 1/2?

anonymous · Answer

k2?

whpalmer4 · Answer

yes, 2k.  now divide that by m, what do you get?

anonymous · Answer

m2??

whpalmer4 · Answer

2k divided by m is going to have a 2, a k, an m, and a division symbol (/).
you arrange them...

whpalmer4 · Answer

how do you write 3 divided by 4?

anonymous · Answer

3/4

whpalmer4 · Answer

right.  so how would you write 2k divided by m?

anonymous · Answer

2k/m

whpalmer4 · Answer

right!!

okay, so now we have 

v^2 = 2k/m

but we want to solve for v.  any ideas what to do next?