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Three identical blocks of masses m= 2 kg are drawn by a, force F = 10. 2 N with an acceleration of 0. 6 ms-² on a, frictionless surface, then what is the tension (in N) in, the string between the blocks B and C?, 1., [2002], B, A, F, (a) 9.2, (b) 3.4, (c) 4, (d) 9.8
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A lift is moving down with acceleration a. A man in the lift, drops a ball inside the lift. The acceleration of the ball as, observed by the man in the lift and a man standing, stationary on the ground are respectively, (a) g, g, (c) g-a, g, [2002], (b) g-a, g – a, (d) a, g
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Two forces are such that the sum of their magnitudes is, 18 N and their resultant is 12 N which is perpendicular, to the smaller force. Then the magnitudes of the forces, [2002], are, (a) 12 N, 6 N, (c) 10 N, 8 N, (b) 13 N, 5 N, (d) 16N, 2N., 3.
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4., A body of mass 5 kg under the action of constant force, F = F,i+Fj has velocity at t = 0 s as v= (6i – 2j) m/s, and at t = 10s as v = +6jm/s. The force F is:, [Online April 11, 2014], (a) (-3j+4i)N, 3: 4:, 1+-j]N, 5, (b), (e) (3i-4j)N, 3, -j|N, 5, (d), 5
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Three blocks of equal masses (each 3 kg) are suspended by weightless strings as shown. If applied force is 100, 5. N, then T, is equal to (g = 10 ms?), T3, T2, T1, T100 N, (а) 130 N, (b) 190 N, (c) 100 N, (d) 160 N, 6. In the above problem, T, is equal to, (a) 190 N, (b) 160 N, (c) 130 N, (d) 100 N, 7., A fireman wants to slide down a rope. The breaking load for the rope is, th of the weight of the fireman. With, 4, what minimum acceleration should he slide down, 3g, (b), 4, (а) д, (d), 8., 4, bol 00
