On Planet X a mass
of 7.2 kg is lifted 1.4 m and gains 260 J of gravitational potential
energy. What is the gravitational acceleration on Planet X?
mass: m = 7.2 kg
height: h = 1.4 m
gravitational potential energy: Ug = 260 J
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Starting formula |
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Algebra: divide each side by h |
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Algebra: h's cancel on right |
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Algebra: divide each side by m |
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Algebra: m's cancel on right |
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Algebra: swap right and left |
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Plug in values with units |
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Math: (260)/((7.2)(1.4)) = 25.793.... |
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Final result with significant figures and unit |
