Physics Force & Motion ETEA 2005
PMDC Verified Question 137 of 137
A ball is just allowed to fall from the window of a moving train, it will hit the ground following:
A
Circular path
B
Hyperbolic
C
Straight line path
D
Parabolic path
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Parabolic path
Concept:

When an object is dropped from a moving frame of reference, it retains the horizontal velocity of that frame due to inertia, while falling under gravity.

Solution:

  • The combination of constant horizontal velocity and constant vertical acceleration produces a parabolic trajectory.


Why other options are incorrect:

A straight line only occurs if there is no horizontal velocity. Circular and hyperbolic paths do not match projectile kinematics.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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