Questions 23 and 24 are based on the following physical situation Ends of three light identical rods each of length l are connected to a light pivot that enables them to rotate in any direction. At the other ends of the rods, three particles A, B and C of masses m, 2m and 3m respectively are affixed. Initially, the rods are coplanar, angle between any two adjacent rod is 120° and the particles are at rest. Now the particle C is given a velocity u perpendicular to the rod connected to it and in the plane of the rods as shown in the figure. Ignore gravitational interaction between the particles. BO 120° 120° 120° * 23. Denoting acceleration vectors of the particles A, B and C by ä,, ä, and ā, respectively, which of the following conclusion can you make? (а) ӑ, +ӑ, +ӑ, - ӧ () Зӑ, + 2ӑр + d, - ӧ (с) ӑ, + 2ӑ, + 3ӑ, — ӧ (d) None of these 24. What are moduli of acceleration vectors of the particles A, B and C immediately after the particle C is given velocity u? Зи? Зи? and 21 (a) All equal to (b) u? 6u? 3u? 2u? and 11l' 11l 12u? (d) 131 6u? 4u? and 131 (c) 111 131

Questions 23 and 24 are based on the following physical situation Ends of three light identical rods each of length l are connected to a light pivot that enables them to rotate in any direction. At the other ends of the rods, three particles A, B and C of masses m, 2m and 3m respectively are affixed. Initially, the rods are coplanar, angle between any two adjacent rod is 120° and the particles are at rest. Now the particle C is given a velocity u perpendicular to the rod connected to it and in the plane of the rods as shown in the figure. Ignore gravitational interaction between the particles. BO 120° 120° 120° * 23. Denoting acceleration vectors of the particles A, B and C by ä,, ä, and ā, respectively, which of the following conclusion can you make? (а) ӑ, +ӑ, +ӑ, - ӧ () Зӑ, + 2ӑр + d, - ӧ (с) ӑ, + 2ӑ, + 3ӑ, — ӧ (d) None of these 24. What are moduli of acceleration vectors of the particles A, B and C immediately after the particle C is given velocity u? Зи? Зи? and 21 (a) All equal to (b) u? 6u? 3u? 2u? and 11l' 11l 12u? (d) 131 6u? 4u? and 131 (c) 111 131

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.2: Trigonometric Equations

Problem 100E

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