Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and one on the Moon. Which of the following three statements is/are true?I. The horizontal distance traveled by the bullet is greater for the Moon.II. The flight time is less for the bullet on the Earth.III. The velocity of the bullets at impact are the same.
Correct answer: C. I and II only
- A. III only
- B. I and III only
- C. I and II only
- D. II and III only
Explanation
Gravitational acceleration on the Moon is lower than on Earth. As a result, the bullet fired on the Moon takes longer to fall to the ground, leading to a greater horizontal distance traveled (Statement I is true). The flight time is shorter on Earth due to stronger gravity pulling the bullet down faster, making Statement II true. The velocities at impact differ because the vertical component of velocity, which depends on gravity, will be higher on Earth, making Statement III false.
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