Which of the following has kinetic energy?
(1) A sleeping boy
(2) A girl watching T.V.
(3) A moving car
(4) A student sitting in class
Match the entries of column-I with identical magnitudes in column-II :
Answers
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Answer:
A moving car has kinetic energy.
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Answered by
1
A moving car has kinetic energy.
Explanation:
- ‘Kinetic energy’ is the energy possessed by a ‘body by virtue’ of its motion. It is dependent on the ‘mass of the body’ and the square of its velocity. It is a ‘vector quantity’.
- Among the given options, a sleeping boy doesn’t move, a girl watching T.V is static, so is a student sitting in the class. None possess a velocity of motion.
- The only moving body is a moving car. Hence that is the body that has kinetic energy.
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