NEET Physics: vehicle on a banked road Practice Questions
14 free multiple-choice questions on vehicle on a banked road (Laws of Motion) for NEET Physics, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more NEET questions in the app →Q1. What is the role of friction in a vehicle moving on a banked road?
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Correct answer: A — It provides the necessary horizontal force to maintain equilibrium.
Friction opposes the motion. In reality, friction is present and affects the required banking angle; it is not eliminated in the ideal case.
Q2. If the static friction between the vehicle and the road is acting, how does it contribute to the required centripetal force when negotiating a banked road?
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Correct answer: A — It opposes the tendency of motion
Static friction acts parallel to the road surface. If the vehicle is sliding (or tends to slide), friction opposes the net tendency of motion, thus modifying the effective force available for turning.
Q3. For a vehicle negotiating a banked curve, if the actual speed is greater than the ideal speed for zero friction, what effect does this have on the forces acting on the vehicle?
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Correct answer: B — The vehicle tends to slide outward
If the actual speed is greater than the ideal speed, the tendency of the vehicle is to move outward, meaning the force of static friction (if present) will act to oppose this motion, pushing the vehicle towards the center of the turn.
Q4. For a vehicle moving on a banked road, which force is responsible for providing the necessary centripetal force towards the center of the curve?
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Correct answer: D — Component of gravitational force
The component of the gravitational force (perpendicular to the road surface) provides the necessary centripetal force to keep the vehicle moving in a circular path along the banked road.
Q5. For a vehicle moving at the ideal speed on a banked road, the angle of banking (θ) is related to the speed (v) and acceleration due to gravity (g) by the formula:
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Correct answer: D — v = √(rgsin θ)
For ideal banking where friction is ignored, the balance leads to v = √(rg sin θ). This formula relates the velocity to the geometry and the component of the normal force.
Q6. Which of the following statements correctly describes the relationship between the speed and the banking angle for safe travel on a banked road?
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Correct answer: A — The ideal speed is achieved when the horizontal component of the reaction force equals the required centripetal force.
Safety requires that the horizontal force provided by the banking balances the required centripetal force, which is dependent on the speed and the geometry, defining the ideal speed.
Q7. When a vehicle moves on a banked road, the normal reaction force provides the necessary centripetal force in the direction of the road. This scenario assumes:
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Correct answer: B — The presence of friction is zero
In the ideal case (no friction), the horizontal component of the normal force acts as the centripetal force, balancing the required centripetal acceleration derived from the road curvature.
Q8. In the context of a vehicle moving on a banked road, which force provides the necessary centripetal force directed towards the center of the curve?
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Correct answer: C — The horizontal component of the normal force
In a banked road scenario, the horizontal component of the normal force provides the necessary centripetal force required to keep the vehicle moving in a circular path, balancing the necessary centripetal acceleration.
Q9. In the case of a vehicle moving on a banked road, if the road is banked at an angle θ and there is no friction, what is the relationship between the banking angle and the speed of the vehicle required for equilibrium?
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Correct answer: B — tan θ= v² / (rg)
For a vehicle moving on a banked road with no friction, the horizontal component of the normal force provides the necessary centripetal force. This leads to the relationship tan θ= v²/rg, where v is the speed, r is the radius of the turn, and g is the acceleration due to gravity.
Q10. If the vehicle travels on a banked road at a speed less than the ideal speed, the tendency of the vehicle is to:
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Correct answer: C — Slide down the incline
If the speed is too low, the required horizontal force is insufficient, causing the vehicle to slide down the incline (over-banking effect is not achieved).
Q11. When a vehicle is moving on a banked road at a specific velocity, the force providing the necessary centripetal acceleration is primarily derived from which component of the forces involved?
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Correct answer: D — The horizontal component of the normal force
The centripetal force required for turning is provided by the horizontal component of the normal force, as this force is directed towards the center of the curve, providing the necessary inward acceleration.
Q12. A vehicle of mass m moves on a road banked at an angle θ with a coefficient of friction μ. What is the condition for the vehicle to move without slipping on the road?
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Correct answer: A — The horizontal component of the resultant force must balance the required centripetal force.
For the vehicle to move without slipping (equilibrium in the direction perpendicular to the road surface), the net horizontal force must provide the necessary centripetal force (mv²/R). This requires the components of the normal force and friction to balance the motion.
Q13. The normal force acting on a vehicle on a banked road is related to the weight of the vehicle and the angle of banking by which formula?
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Correct answer: D — N = mg / cos θ
The normal force perpendicular to the road is related to the component of gravity acting perpendicular to the incline, which is mg cos θ in the balancing equation.
Q14. A vehicle moves on a banked road. What is the primary force that keeps the vehicle moving in a circular path (or along the banked curve)?
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Correct answer: D — Horizontal component of the normal force
In the case of a banked road, the net horizontal force is provided by the horizontal component of the normal reaction force exerted by the road on the vehicle.
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