Question:medium
A vehicle moving at 36 km/hr is to be stopped by applying brakes in the next 5 m. If the vehicle weighs 2000 kg, determine the average force that must be applied on it
A vehicle moving at 36 km/hr is to be stopped by applying brakes in the next 5 m. If the vehicle weighs 2000 kg, determine the average force that must be applied on it
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For problems involving force, distance, and changes in speed (without mentioning time), the work-energy principle is often faster than using kinematic equations and Newton's laws separately . Also, always check that the velocity is in standard S.I. units (m/s) before squaring it in energy calculations. The applied average force opposes motion.
Updated On: May 1, 2026
- $10^4$ N
- $2 \times 10^4$ N
- $3 \times 10^4$ N
- $5 \times 10^3$ N
- $10^3$ N
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The Correct Option is B
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