A body moving at speed of 2m/s has a kinetic energy of 10j. Find the mass
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The mass of the object is 0.025 kg
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Kinetic energy=1/2mv^2
10J=1/2m×2×2
10J=1/2m×4
10J=2m
10/2=m
5=m
Therefore mass is 5 kg
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