The pulleys and strings shown in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle \(\theta\) should be:
1. \(0^\circ\)
2. \(30^\circ\)
3. \(45^\circ\)
4. \(60^\circ\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA body of mass \(5\) kg is suspended by the strings making angles \(60^\circ\)
Then:
(A) | \( {T}_1=25~ \text{N} \) |
(B) | \( {T}_2=25 ~\text{N} \) |
(C) | \({T}_1=25 \sqrt{3}~ \text{N} \) |
(D) | \({T}_2=25 \sqrt{3}~ \text{N} \) |
1. | (A), (B), and (C) only |
2. | (A) and (B) only |
3. | (A) and (D) only |
4. | (A), (B), (C), (D) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. |
\(\overrightarrow N+\overrightarrow T+\overrightarrow W=0\) |
2. | \(T^2=N^2+W^2\) |
3. | \(T = N + W\) | 4. | \(N = W \tan \theta\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA man of mass \(60\) kg is standing on the ground and holding a string passing over a system of ideal pulleys. A mass of \(10\) kg is hanging over a light pulley such that the system is in equilibrium. The force exerted by the ground on the man is: (\(g=\) acceleration due to gravity)
1. \(20g\)
2. \(45g\)
3. \(40g\)
4. \(60g\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA string of negligible mass going over a clamped pulley of mass \(m\) supports a block of mass \(M\) as shown in the figure. The force on the pulley by the clamp is given by:
1. \(\sqrt{2} M g\)
2. \(\sqrt{2} m g\)
3. \(g\sqrt{\left( M + m \right)^{2} + m^{2}}\)
4. \(g\sqrt{\left(M + m \right)^{2} + M^{2}}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThree blocks \(\mathrm{A}\), \(\mathrm{B}\), and \(\mathrm{C}\) of masses \(4~\text{kg}\), \(2~\text{kg}\), and \(1~\text{kg}\) respectively, are in contact on a frictionless surface, as shown. If a force of \(14~\text{N}\) is applied to the \(4~\text{kg}\) block, then the contact force between \(\mathrm{A}\) and \(\mathrm{B}\) is:
1. \(2~\text{N}\)
2. \(6~\text{N}\)
3. \(8~\text{N}\)
4. \(18~\text{N}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology