PHYSICS - please check my work

a spectator at a hockey game is sitting in a seat situated 10.4m above ground leve. if the spectator has a mass of 52.6 kg, calculate her gravitational potential energy relative to:

a)ground level
Eg=mgh
=52.6X9.8X10.4
=5360.99J

b)the ice surface
Eg=mgh
=52.6X9.8X13.2
=6804J

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asked by Sarah
  1. Part (a) is correct and the formula you use is correct, but you don't say what the ice surface elevation is. You do the problem as if the ice surface were 2.8 m below ground level.

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    posted by drwls

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