NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

1 Easy

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Application +4 | -1

An unbanked circular highway curve on level ground makes a turn of

90^{\circ}

. The highway carries traffic at

108 \,\mathrm{km}-\mathrm{hr}^{-1}

, and the centripetal force on a vehicle is not to exceed

1 / 10

of its weight. What is the approximate minimum length of the curve, in

\mathrm{km}

View answer and explanation

Correct option: A

1.4 \mathrm{~km}

Option A (1.4 km) is correct because it is calculated by finding the radius of the curve using the centripetal force condition and then determining the arc length for a 90-degree turn.

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