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Q. No.A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is:
| 1. | along south-west |
| 2. | along eastward |
| 3. | along northward |
| 4. | along north-east |
Subtopic: Newton's Laws |
From NCERT
NEET - 2023
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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 |
77%
From NCERT
NEET - 2023
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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. | \(20\) |
Subtopic: Friction |
63%
From NCERT
NEET - 2023
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A \(1\) kg object strikes a wall with velocity \(1\) ms-1 at an angle of \(60^\circ\) with the wall and reflects at the same angle. If it remains in contact with the wall for \(0.1\) s, then the force exerted on the wall is:
1. \(30\sqrt3~\text N\)
2. zero
3. \(10\sqrt3~\text N\)
4. \(20\sqrt3~\text N\)
1. \(30\sqrt3~\text N\)
2. zero
3. \(10\sqrt3~\text N\)
4. \(20\sqrt3~\text N\)
Subtopic: Newton's Laws |
79%
From NCERT
NEET - 2023
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| Assertion (A): | A standing bus suddenly accelerates. If there was no friction between the feet of a passenger and the floor of the bus, the passenger would move back. |
| Reason (R): | In the absence of friction, the floor of the bus would slip forward under the feet of the passenger. |
| 1. | (A) is true but (R) is false. |
| 2. | (A) is false but (R) is true. |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
Subtopic: Newton's Laws |
60%
From NCERT
NEET - 2022
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When a body of mass 'm' just begins to slide as shown, match list-I with list-II:
| List-I | List-II | ||
| (a) | Normal reaction | (i) | P |
| (b) | Frictional force (fs) | (ii) | Q |
| (c) | Weight (mg) | (iii) | R |
| (d) | mgsin\(\theta ~\) | (iv) | S |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iii) | (iv) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Application of Laws |
83%
From NCERT
NEET - 2022
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In the diagram shown, the normal reaction force between \(2\) kg and \(1\) kg is:
(Consider the surface to be smooth and \(g=10\) ms-2 )
1. \(25\) N
2. \(39\) N
3. \(6\) N
4. \(10\) N
(Consider the surface to be smooth and \(g=10\) ms-2 )
1. \(25\) N
2. \(39\) N
3. \(6\) N
4. \(10\) N
Subtopic: Tension & Normal Reaction |
From NCERT
NEET - 2022
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A ball of mass 0.15 kg is dropped from a height 10 m, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is nearly:
1. 2.1 kg m/s
2. 1.4 kg m/s
3. 0 kg m/s
4. 4.2 kg m/s
Subtopic: Application of Laws |
55%
From NCERT
NEET - 2021
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Two bodies of mass, 4 kg and 6 kg, are tied to the ends of a massless string. The string passes over a pulley, which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is:
1. g/2
2. g/5
3. g/10
4. g
Subtopic: Application of Laws |
83%
From NCERT
NEET - 2020
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A point mass \(m\) is moved in a vertical circle of radius \(r\) with the help of a string. The velocity of the mass is at the lowest point. The tension in the string at the lowest point is:
1. \(6mg\)
2. \(7mg\)
3. \(8mg\)
4. \(mg\)
Subtopic: Non Uniform Vertical Circular Motion |
61%
From NCERT
NEET - 2020
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