- 1(current)
Q. No.A curve in a level road has a radius of \(75\) m. The maximum speed of a car turning this curved road can be \(30\) m/s without skidding. If the radius of the curved road is changed to \(48\) m and the coefficient of friction between the tyres and the road remains the same, then the maximum allowed speed would be:
1. \(12\) m/s
2. \(24\) m/s
3. \(32\) m/s
4. \(44\) m/s
1. \(12\) m/s
2. \(24\) m/s
3. \(32\) m/s
4. \(44\) m/s
Subtopic: Banking of Roads |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car is moving on a circular track of radius \(50~\text{cm}\) with coefficient of friction being \(0.34.\) On this horizontal track, the maximum safe speed for turning is equal to:
(take \(g=10~\text{m/s}^2\) )
1. \(1.03~\text{m/s}\)
2. \(1.7~\text{m/s}\)
3. \(1.3~\text{m/s}\)
4. \(1.8~\text{m/s}\)
(take \(g=10~\text{m/s}^2\) )
1. \(1.03~\text{m/s}\)
2. \(1.7~\text{m/s}\)
3. \(1.3~\text{m/s}\)
4. \(1.8~\text{m/s}\)
Subtopic: Banking of Roads |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car with a mass of \(200\) kg is moving along a circular track with a radius of \(70\) m at an angular velocity of \(0.2\) rad/s. What is the magnitude of the centripetal force acting on the car?
1. \(560\) N
2. \(400\) N
3. \(360\) N
4. \(200\) N
1. \(560\) N
2. \(400\) N
3. \(360\) N
4. \(200\) N
Subtopic: Banking of Roads |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA train moves along a circular track of radius \(R\) with speed \(v.\) The track has a width \(w\) \( (w\ll R) .\) To ensure safe motion without relying on friction, the outer rail is elevated above the inner rail. What should be the required elevation of the outer track?
| 1. | \(\dfrac{v^2 w}{R g}\) | 2. | \(\dfrac{v^2 w}{2R g}\) |
| 3. | \(\dfrac{gw v^2}{R}\) | 4. | \(\dfrac{R}{g w v^2}\) |
Subtopic: Banking of Roads |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car of \(800\) kg is taking turn on a banked road of radius \(300\) m and angle of banking \( 30°\). If coefficient of static friction is \(0.2\) then the maximum speed with which car can negotiate the turn safely : (\(g=10 \mathrm{~m} / \mathrm{s}^2, \sqrt{3}=1.73\))
1. \(51.4\) m/s
2. \(102.8\) m/s
3. \(70.4\) m/s
4. \(264\) m/s
Subtopic: Banking of Roads |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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