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The kinetic energy of a moving object is KE = 1/2 mv2, where m is the mass and v is the speed. An average apple has a mass of 0.16 kg. How fast must the apple travel in m/s to have kinetic energy of 0.69 million joules?

 Jan 25, 2021
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KE = 1/2 mv2

 690000 = 1/2 (.16)v2

 

sqrt [690,000 *2 /(.16) ] = ........ m/s

 Jan 25, 2021

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