Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2012
Exam
NEET
Year
2012
Subject
Physics
Chapter
Laws of Motion

NEET 2012 · Physics · Laws of Motion

A car of mass m is moving on a level circular track of radius R ....

A car of mass mm is moving on a level circular track of radius RR. If μs\mu_s represents the static friction between the road and tyres of the car, the maximum speed of the car in circular motion is given by

Options

  1. AμsmRg\sqrt{\mu_s m R g}
  2. BRg/μs\sqrt{R g / \mu_s}
  3. CmRg/μs\sqrt{m R g / \mu_s}
  4. DμsRg\sqrt{\mu_s R g}

Correct answer

D. μsRg\sqrt{\mu_s R g}

Step-by-step solution

In this condition, centripetal force is equal to static frictional force between road and tyres, so μsmg=mv2Rvmax⁡=μsRg\begin{aligned} \mu_s m g & =\frac{m v^2}{R}\\ v_{\max } & =\sqrt{\mu_s R g} \end{aligned}
Practice Laws of Motion on Quantrex Academy →

More from Laws of Motion

The magnitude and direction of the acceleration produced in a body of mass 5 kg when two… NEET 2026A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of… NEET 2026A car travels on a circular racetrack of radius 50 m, which is banked at an angle θ . If… NEET 2026There are two inclined surface of equal length (L) and same angle of inclination 45^ ∘… NEET 2025A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an… NEET 2025A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30^ ∘… NEET 2024A bob is whirled in a horizontal circle by means of a string at an initial speed of 10… NEET 2024A horizontal force 10 N is applied to a block A as shown in figure. The mass of blocks A… NEET 2024 Full Laws of Motion list All NEET PYQs