- 1(current)
Q. No.If the mass of block A = 10 kg, coefficient of static friction = 0.2, coefficient of kinetic friction = 0.2, then the minimum mass of block B to start the motion is:
1. 2 kg
2. 2.2 kg
3. 4.8 kg
4. 200 g
Subtopic: Types of Forces | Application of Laws | String Constraint |
76%
Level 2: 60%+
PMT - 2004
Hints
The pulleys and string shown in the figure are smooth and of negligible mass. For the system to remain in equilibrium, the angle \(\theta\) should be:
1. 0°
2. 30
3. 45
4. 60
Subtopic: String Constraint |
88%
Level 1: 80%+
Hints
In the arrangement shown in figure a1, a2, a3 and a4 are the accelerations of masses m1, m2, m3 and m4 respectively. Which of the following relation is true for this arrangement?
1. \(4 a_1+2 a_2+a_3+a_4=0 \)
2. \(a_1+4 a_2+3 a_3+a_4=0 \)
3. \( \mathrm{a}_1+4 \mathrm{a}_2+3 \mathrm{a}_3+2 \mathrm{a}_4=0 \)
4. \( 2 a_1+2 a_2+3 a_3+a_4=0\)
1. \(4 a_1+2 a_2+a_3+a_4=0 \)
2. \(a_1+4 a_2+3 a_3+a_4=0 \)
3. \( \mathrm{a}_1+4 \mathrm{a}_2+3 \mathrm{a}_3+2 \mathrm{a}_4=0 \)
4. \( 2 a_1+2 a_2+3 a_3+a_4=0\)
Subtopic: String Constraint |
87%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
A block A of mass 7 kg is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass 3 kg at the other end. The acceleration of the system is (given g = 10 ms–2)
1. 100 ms–2
2. 3 ms–2
3. 10 ms–2
4. 30 ms–2
Subtopic: String Constraint |
85%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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