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g = 978,0495 (1+0.0052892 sin2 (p) - 0.0000073 sin2 (2p)) sentimeter per detik2. (cm/s2).
Ep = 2kg x 20m x 978,0495
= ?
m= 2 Kg
h= 20 m
g= 9,81 m/s²
Dit:
Ep=...?
Penye:
Ep= m×g×h
Ep= 2×20×9,81
Ep= 392,4 J