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How much force are you exerting when you lift a 20-pound dumbbell?
Wiki User
∙ 14y ago
Assuming the dumbbell is suspended at a constant height from the ground and not moving you are exerting 89 Newtons (N).
Force (N) = Mass (kg) x Acceleration due to gravity (9.8067 m/s2)
20lb = 9.072 kg
9.072 x 9.8067 = 89 N
Leigh
Wiki User
∙ 14y ago
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