Physics
Grade-7
Easy
Question
Which of the bodies given below has more kinetic energy when mass is constant?
A) 3 m/s
B) 6 m/s
- 3m/s
- 6m/s
- Both A and B
- None
Hint:
6 m/s
The correct answer is: 6m/s
Kinetic energy is directly proportional to the square of its velocity. Here, the velocity of 6 m/s is more than 3 m/s hence, the kinetic energy is more when the velocity is 6 m/s.
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