## anonymous 4 years ago The formula for the kinetic energy of a moving object is e=1/2mv^2 , where E is the kinetic energy in joules, m is the mass in kilograms, and v is the veloci

1. anonymous

lol..waat u want

2. anonymous

f an object whose mass is 4 kilograms and whose kinetic energy is 64 joules?

3. anonymous

@Yahoo!

4. anonymous

$K.E =\frac{ 1 }{ 2 }mv^2$

5. anonymous

so 4.0 m/sec?

6. anonymous

what is the question ? finding the velocity?

7. anonymous

the m/sec @Coolsector

8. anonymous

ok so you got 64 = (1/2) * 4 * v^2 what is v^2 then ?

9. anonymous

5.6 @Coolsector

10. anonymous

this is v .. right :)

11. anonymous

thanks.