- 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
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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
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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. \( 2 a_1+2 a_2+3 a_3+a_4=0\)
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
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- 1(current)
Q. No.
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