Answer:
GPE=98J if the given gravity is 9.8 but the gravity is 10 it will be 100J
Explanation:
GPE=mgh so m=8kg g=9.8m/s^2 or 10J h=1.25m
so GPE=8kg×9.8 or 10 m/s^2×1.25m
GPE=98J if the given gravity is 9.8 and GPE=100 if the given gravity is 10.but ask your teacher (asker) and don't forget those formula