- #1

nicholz

- 2

- 0

If a cart rolled down a ramp 5 meters high and flew off a a table at 3 meters high, what would its velocity be?

please let me know where i go wrong, i was using the law of conservation of energy

mgh

mg(h

v=square root of 2g(h1-h2)

where h1=5 and h2=3

i plugged in numbers for the variables and i can't seem to get it to work out. is the equation i came up with correct?

edit: i was thinking that it should come out to the square root of 2gh. would that be right though? can i consider the release height to be the "0" height here?

please let me know where i go wrong, i was using the law of conservation of energy

mgh

_{1}=mgh_{2}+1/2mv^{2}mg(h

_{1}-h_{2})=1/2mv^{2}v=square root of 2g(h1-h2)

where h1=5 and h2=3

i plugged in numbers for the variables and i can't seem to get it to work out. is the equation i came up with correct?

edit: i was thinking that it should come out to the square root of 2gh. would that be right though? can i consider the release height to be the "0" height here?

Last edited: