A stone released from the window of a moving train shall hit the ground following:
Correct answer: C. Curved path
- A. Straight path
- B. Circular path
- C. Curved path
- D. Elliptical path
Explanation
When a stone is released from the window of a moving train, it continues to move horizontally at the same speed as the train due to its initial velocity. Simultaneously, it accelerates downwards due to gravity. This combination of motions results in a projectile motion, characterized by a curved, parabolic path.The straight path (Option A) is incorrect because it ignores the horizontal motion of the train. The circular path (Option B) is incorrect as it suggests a constant change in direction around a central point, which is not applicable here. The elliptical path (Option D) is incorrect as it pertains to orbital motion, not projectile motion.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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