why weight is equal to force ??
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Air balloon begins to descend toward the ground from a height of 2250 feet. If it descends at the rate of 150 feet/ minute. The height after 12 minutes is..?
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The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.
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