Posted by kevin on Sunday, April 1, 2012 at 8:54pm.
mass of coaster is 800kg
second hill is 70m
do you take 800*70*9.8=548800
Please help

physics  bobpursley, Sunday, April 1, 2012 at 8:56pm
Yes. use units, here it will be energy in Joules

physics  kevin, Sunday, April 1, 2012 at 10:21pm
Could you show me how my answer would look please, and would you happen to know aside from the mass what other measurement (numerical value) need to know to calculate GPE?
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