Physics Force & Motion NUMS 2023
PMDC Verified Question 54 of 137
At what point during the motion of projectile its vertical component of velocity is zero?
A
Point of projectile
B
Landing point
C
Highest point
D
Just before landing
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Highest point
Concept:

Gravity pulls down continuously, slowing an upwardly launched object until it stops, turns around, and falls.

Solution:

  • As the projectile rises, gravity decelerates its vertical motion.


  • Exactly at the peak (maximum height), the upward velocity is fully exhausted before downward velocity begins.


  • Therefore, at the absolute highest point, \( v_y = 0 \).


Why other options are incorrect:

At launch and landing, the vertical velocity is at its maximum magnitude (ignoring air resistance).

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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