A roller coaster is at the top of a 72m hill and weighs 966N. At the top of the hill the coaster car has ___________________ energy. Calculate it.
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PE= mgh = 98.57 kg (9.8 meters per second) 72 m m=f over 8 966n over 9.8 meters per second squared + 98. 57 kg PE = 69,551 joules
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