Question

Keeping in mind that kinetic energy KE = mv2/2 and that weight = mg (g = 9.80 m/s2), what is the velocity of the barbell when it hits the floor? ( from 1 meter)

Answer 1

\[KE= MV ^{2}\div2\] is that ur question?

Answer 2

yes

Answer 3

but finding velocity from it

Answer 4

ok how far have u gone with it?

Answer 5

I know the KE is 155 N

Answer 6

I just dont know what to plug in for Mass

Answer 7

ok that is d ish.... lets walk through this together

Answer 8

ok

Answer 9

the energy at all states is given by its Potential Energy + kinetic energy

Answer 10

PE= mGh
KE=mv^2/2