Physics Force & Motion NUMS 2024
PMDC Verified Question 13 of 137
If you stops your car quickly by wearing seat belts, chance of injury is greatly reduced because seat belt applied
A
Extra force
B
Perpendicular force
C
Opposite force
D
Zero force
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Opposite force
Concept:

Seatbelts utilize the impulse-momentum theorem and Newton's Third Law to protect passengers.

Solution:

  • During a sudden stop, your body wants to continue forward due to inertia.


  • The seatbelt stretches slightly, applying a restraining force directly backward (opposite) against your chest to safely reduce your momentum over a longer time span.


  • This opposite force counters the forward inertia, preventing a high-force impact with the windshield.


Why other options are incorrect:

Extra force is vague. Perpendicular force would push you sideways. Zero force means the seatbelt did absolutely nothing to restrain you.

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.

Previous Question All Force & Motion MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App