AIPMT PRELIMS2012Physics-Mechanics
AIPMT PRELIMS 2012 Physics Circular Motion MCQ Question
Type: MCQ-numerical-Medium-Class 11
A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is 45°, the speed of the car is
A
10 ms⁻¹
B
20 ms⁻¹
C
30 ms⁻¹
D
5 ms⁻¹
Correct Answer
Option C
Detailed Explanation
Using the formula for the speed on a banked curve, v = √(rg tan θ), where r = 90 m, g = 10 m/s², and θ = 45°, the speed is calculated as 30 m/s.
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