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in Physics by (69.9k points)

A girl of mass 35kg climbs up from the first floor of a building at a height 4m above the ground to the third floor at a height 12m above the ground. What will be the increase in her gravitational potential energy? [g = 10ms-2

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Increase in graviational potential energy

= mg(h2 - h1)

= 35 x 10(12 - 4) = 350 x 8 = 2,800J

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