KINEMATICS 1. Figure shows two displacement – time graph for particles A and B. If the velocities of particles A and B are v A and v B respectively. Then which of the following is correct? (A) v A = v B (B) v A > v B (C) v A < v B (D) none of these 2. The displacement-time graph of a particle moving with a uniform velocity is (A) point (B) straight line (C) parabola (D) none 3. In the above graph initial velocity is (A) 4 m/s (B) zero (C) 2 m/s (D) 4 m/s 4. The v – t graph is shown in the figure for particle, the acceleration of particle is (A) 22.5 m/s 2 (B) 5 m/s 2 (C) -5 m/s 2 (D) -3 m/s 2 5. Velocity time graph of a particle in motion is shown. Then displacement and distance covered by the particle in 2 seconds (A) 2, 4 m (B) 0, 2 m (C) 2, 2 m (D) 0, 0 m 6. Which of the following graph correctly represents velocity-time relationship for a particle released from rest to fall freely under gravity ? (A) (B) (C) (D) FIITJEE Ltd., ICES House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016, Ph : 26515949, 26569493, Fax : 26513942
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KINEMATICS
1. Figure shows two displacement – time graph for
particles A and B. If the velocities of particles A
and B are vA and vB respectively. Then which of
the following is correct?
(A) vA = vB (B) vA > vB (C) vA < vB (D) none of these
2. The displacement-time graph of a particle moving with a uniform velocity is
(A) point (B) straight line (C) parabola (D) none
3. In the above graph initial velocity is
(A) 4 m/s (B) zero
(C) 2 m/s (D) 4 m/s
4. The v – t graph is shown in the figure for particle, the
acceleration of particle is
(A) 22.5 m/s2 (B) 5 m/s2
(C) -5 m/s2 (D) -3 m/s2
5. Velocity time graph of a particle in motion is shown.
Then displacement and distance covered by the particle
in 2 seconds
(A) 2, 4 m (B) 0, 2 m
(C) 2, 2 m (D) 0, 0 m
6. Which of the following graph correctly represents velocity-time relationship for a particle released from rest to fall freely under gravity ?
19. With reference to displacement, time graph as shown which of the following
is true
(A) Velocity is increasing (B) Velocity is decreasing
(C) Velocity is constant (D) Velocity is zero
20. A tennis ball is dropped vertically onto a floor and bounces again. Taking velocity upwards as
positive, which of the following is best represented by v – t curve?
21. Two balls are dropped from the top of a high tower with a time interval of to seconds. Where to is
smaller than the time taken by the first ball to reach the elastic floor. The distance S between the
two balls, plotted against the time taken ‘t’ from the instant of dropping the second ball is best
represented by
(A)
(B)
(C)
(D)
22. A point travels along the straight line with velocity v. The variation of velocity v with time is shown in the graph. Assuming initial displacement to be zero, i.e. at t = 0, s = 0, draw approximate graph of displacement acceleration and the distance travelled against the time.