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What is the speed of a 48- kilogram dog running across a lawn with 216 joules of kinetic energy?
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Aug 8, 2018
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What is the speed of a 48- kilogram dog running across a lawn with 216 joules of kinetic energy?
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The answer is 20.426 m/s. From the equation of Kinetic energy, KE = 1/2 mv^2. An equation for v can be computed using algebra. v^2 = (2KE)/ m then taking its square root this would yield an equation of sqrt ((2 KE) / m).
Adesola
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Aug 14, 2018
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