The kinetic energy of a 10-kilogram object is 2000 joules. What is the speed of the object, in m/s?
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Answer:
20m/s
Given,
K. E. = 2000 J
=>(1/2)mv² = 2000
=>(1/2) × 10 × v² = 2000
=> 5 v² = 2000
=> v² = 400
=> v = 20 m/s
Note: All the given values are in S. I. unit . So we don't need to convert any.
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