Three solids of masses m1, m2 and m3 are connected with weightless string in succession and are placed on a frictionless table. If the mass m3 is dragged with a force T, the tension in the string between m2 and m3 is 

(1) m2m1+m2+m3T

(2) m3m1+m2+m3T

(3) m1+m2m1+m2+m3T

(4) m2+m3m1+m2+m3T

Subtopic:  Application of Laws |
 69%
From NCERT
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Three blocks of masses m1, m2 and m3 are connected by massless strings as shown on a frictionless table. They are pulled with a force T3 = 40 N. If m1 = 10 kg, m2 = 6 kg and m3 4 kg, the tension T2 will be 

(1) 20 N

(2) 40 N

(3) 10 N

(4) 32 N

Subtopic:  Application of Laws |
 80%
From NCERT
PMT - 1998
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A light string passes over a frictionless pulley. To one of its ends a mass of 6 kg is attached. To its other end a mass of 10 kg is attached. The tension in the thread will be 

(1) 24.5 N

(2) 2.45 N

(3) 79 N

(4) 73.5 N

Subtopic:  Application of Laws |
 78%
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Two masses of 5kg and 10kg are connected to a pulley as shown. What will be the acceleration of the system (g = acceleration due to gravity)

(1) g

(2) g2

(3) g3

(4) g4

Subtopic:  Application of Laws |
 88%
From NCERT
PMT - 2000
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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%
From NCERT
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Three blocks of masses 2 kg, 3 kg and 5 kg are connected to each other with light string and are then placed on a frictionless surface as shown in the figure. The system is pulled by a force F = 10 N, then tension T1 = 

(1) 1N

(2) 5 N

(3) 8 N

(4) 10 N

Subtopic:  Application of Laws |
 86%
From NCERT
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A body of weight 2kg is suspended as shown in the figure. The tension T1 in the horizontal string (in kg wt) is 

(1) 2/3

(2) 3/2

(3) 23

(4) 2

Subtopic:  Application of Laws |
 72%
From NCERT
PMT - 2002
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One end of a massless rope, which passes over a massless and frictionless pulley P is tied to a hook C while the other end is free. Maximum tension that the rope can bear is 360 N. with what value of minimum safe acceleration (in ms–2) can a monkey of 60 kg move down on the rope 

1. 16

2. 6

3. 4

4. 8

Subtopic:  Application of Laws |
 77%
From NCERT
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A light string passing over a smooth light pulley connects two blocks of masses m1 and m2 (vertically). If the acceleration of the system is g/8 then the ratio of the masses is 

(1) 8 : 1

(2) 9 : 7

(3) 4 : 3

(4) 5 : 3

Subtopic:  Application of Laws |
 81%
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A block of mass 4 kg is suspended through two light spring balances A and B. Then A and B will read respectively 

(1) 4 kg and zero kg

(2) Zero kg and 4 kg

(3) 4 kg and 4 kg

(4) 2 kg and 2 kg

Subtopic:  Spring Force |
 73%
From NCERT
AIIMS - 1995
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