- 1(current)
Q. No.Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is \(0.15\). (take \(g=10\) ms–2)
| 1. | \(50\) ms–2 | 2. | \(1.2\) ms–2 |
| 3. | \(150\) ms–2 | 4. | \(1.5\) ms–2 |
Subtopic: Friction |
83%
Level 1: 80%+
NEET - 2023
Hints
A block of mass \(2\) kg is placed on inclined rough surface \(AC\) (as shown in the figure) of coefficient of friction \(\mu.\) If \(g=10\) ms–1, the net force (in N) on the block will be:
1. \(10\sqrt3\)
2. zero
3. \(10\)
4. \(20\)
1. \(10\sqrt3\)
2. zero
3. \(10\)
4. \(20\)
Subtopic: Friction |
67%
Level 2: 60%+
NEET - 2023
Hints
Calculate the acceleration of the block and trolly system shown in the figure. The coefficient of kinetic friction between the trolly and the surface is \(0.05.\)
( \(g=10~\text{m/s}^2,\) the mass of the string is negligible and no other friction exists)
| 1. | \( 1.25~\text{m/s}^2\) | 2. | \( 1.50~\text{m/s}^2\) |
| 3. | \(1.66~\text{m/s}^2\) | 4. | \( 1.00~\text{m/s}^2\) |
Subtopic: Friction |
67%
Level 2: 60%+
NEET - 2020
Hints
Links
A body of mass \(m\) is kept on a rough horizontal surface (coefficient of friction = \(\mu).\) A horizontal force is applied to the body, but it does not move. The resultant of normal reaction and the frictional force acting on the object is given by \(\vec {F}\) where:
1. \(|{\vec {F}}| = mg+\mu mg\)
2. \(|\vec {F}| =\mu mg\)
3. \(|\vec {F}| \le mg\sqrt{1+\mu^2}\)
4. \(|\vec{F}| = mg\)
Subtopic: Friction |
75%
Level 2: 60%+
NEET - 2019
Hints
Links
Which one of the following statements is incorrect?
| 1. | Rolling friction is smaller than sliding friction. |
| 2. | The limiting value of static friction is directly proportional to the normal reaction. |
| 3. | Frictional force opposes the relative motion. |
| 4. | The coefficient of sliding friction has dimensions of length. |
Subtopic: Friction |
79%
Level 2: 60%+
NEET - 2018
Hints
Links
- 1(current)
Q. No.
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