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A bomb is dropped by fighter plane flying horizontally. To an observer sitting in the plane, the trajectory of the bomb is a:

1. hyperbola
2. parabola in the direction of motion of plane
3. straight line vertically down the plane
4. parabola in a direction opposite to the motion of plane

Correct answer: straight line vertically down the plane

Solution

To the observer in the plane, the bomb has zero horizontal velocity relative to the plane, so it appears to drop vertically straight down.

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