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Physics 12 Online
OpenStudy (anonymous):

how much kinetic energy r my legs capable to give me

OpenStudy (unklerhaukus):

do you know your mass? and top running speed?

OpenStudy (anonymous):

65 and 12 miles/hour

OpenStudy (unklerhaukus):

\[ KE=\tfrac12mv^2\]

OpenStudy (anonymous):

nop we r suppose to find it using law of conservation energy which is mgz = 1/2mv^2

OpenStudy (unklerhaukus):

ooh so you have to jump?

OpenStudy (anonymous):

idk what z is i m suppose to jump and find energy of my legs yes

OpenStudy (anonymous):

i think it is 0.5m

OpenStudy (unklerhaukus):

well z is the height you can jump

OpenStudy (anonymous):

which will give me v thats what i need

OpenStudy (anonymous):

0.5m???

OpenStudy (unklerhaukus):

you can jump half a meter?

OpenStudy (unklerhaukus):

the best measure will be for the change in hight of the centre of mass,

OpenStudy (unklerhaukus):

50cm seems like way too much to me

OpenStudy (anonymous):

I think I can jump that much

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