Physics
Grade-7
Easy
Question
Which of the bodies given below has less kinetic energy when both have the same mass?
A) 3 m/s
B) 6 m/s
- A
- B
- A & B
- None
Hint:
A
The correct answer is: A
Kinetic energy is directly proportional to the square of its velocity. If a body has less velocity, then its kinetic energy will also be lesser. Here, A possesses less velocity hence, its kinetic energy is also less.
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