(a) 10√2 m/second and 135° from either (b) 10√2 m/second and 45° from either (c) 10/√2 m/second and 135° from either (d) 10/√2 m/second and 45° from either Answer: a (3)
(a) 3v cosθ (b) 2v cosθ (c) 3/2v cosθ (d) √3/2 cosθ Answer: a (7)
(a) t1/2 (b) t3/4 (c) t3/2 (d) t2 Answer: …
(a) 1 implies 2 and 2 implies 1 (b) 1 does not imply 2 and 2 does not imply 1 (c) 1 implies 2 but 2 does not imply 1 (d) 1 does not imply 2 but 2 implies 1 …
(a) mg (b) mg (1-h/d) (c) mg (1+h/d) (d) mg(1+h/d)2 Answer: c (5)
(a) √m (b) Independent of m (c) 1/√m (d) m …
(a) At point away from the origin, the particle is in unstable equilibrium (b) For any finite non-zero value of x, there is a force directed away from the origin (c) If its total mechanical energy is k/2, it has …
(a) The momentum of the ball just after the collision is the same as that just before the collision (b) The mechanical energy of the ball remains the same in the collision (c) The total momentum of the ball and …
(a) MgL (b) MgL/3 (c) MgL/9 (d) MgL/18 Answer: D (6)
(a) W1>W2>W3 (b) W1=W2=W3 (c) W1<W2<W3 (d) W2 >W1>W3 Answer: b (8)
a) K/2r (b) – (K/2r) (c) -(K/r) (d) K/r Answer: b (39)
(a) 0.5 sec (b) 0.2 sec (c) 0.4 sec (d) 0.25 sec answer : a (29)
(a) 2.5 km/hour (b) 20 km/hour (c) 40 km/hour (d) 50 km/hour answer : c (4)
(a) -2 Ka2 (b) 2 Ka2 (c) – Ka2 (d) Ka2 Answer: …
(a) Particle going in a circle (b) Particle going along a straight line (c) The momentum of the particle constant (d) Acceleration of the particle constant ANSWER: c (9)
(a) Zero (b) 500 N (c) 1000 N (d) 2000 N ANSWER : b (10)
(a) Lorry will come to rest in a shorter distance (b) Car will come to rest in a shorter distance (c) Both come to rest in a same distance (d) None of the above Answer: C (6)
(a) 0.3 N (b) 30 N (c) 300 N (d) 3000 N ANSWER : b (6)
(a) The gravity does not act on bodies moving with high speeds (b) The thrust of the jet compensates for the force of gravity (c) The flow of air around the wings causes an upward force, which …
(a) 1/2 mgR (b) 2 mgR (c) mgR (d) 1/4 mgR Answer: A (5)
(a) ω∝ 1/r (b) ω∝r (c) ω=0 (d) ω is independent of r Ans. d (5)
(a) 1 : 1 (b) 1 : 2 (c) 2 : 1 (d) 4 : 1 Ans. b (13)
(a) π/2 (b) π/4 (c) π/6 (d) π/8 Ans. a (5)
(a) – 25.5 rad/s2 (b) – 29.5 rad/s2 (c) – 33.5 rad/s2 (d) – 45.5 rad/s2 Ans. a (10)
(a) 3 pi rad/sec2 (b) 9 pi rad/sec2 (c) 18 pi rad/sec2 (d) 54 pi rad/sec2 Ans. a (42)
(a) π rad/sec (b) 2π rad/sec (c) 4 π rad/sec (d) 4π2 rad/sec Ans. c (25)
(a) Same linear and angular velocity (b) Same linear and different angular velocity (c) With different linear velocities and same angular velocities (d) With different linear velocities and different angular velocities Ans.c (7)
(a) 0.5 m/s (b) 0.75 m/s (c) 1.25 m/s (d) Zero Ans.a (11)
(a) (KL+KM+LM)/3 (b) (KL+KM)/3 (C) (KL+LM)/3 (d) (KM+LM)/3 Ans. b (34)
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