Question

Q.19 Instantaneous and average velocities become equal when body
A. has zero acceleration
B. has uniform acceleration
C. has variable acceleration
D. moves in a circle
Q.20 Which of the following velocity – time graph represents uniform acceleration?
Q.21 Which of the following is a false statement?
A. a body can have a constant speed and still have varying velocity
B. a body can have a constant velocity and still have a varying speed.
C. a body can have zero velocity and still be accelerated.
D. the direction of the velocity of a body can change when its acceleration is constant.
Q.22 The graph below represents
A. non – uniform acceleration
B. constant acceleration
C. constant retardation
D. constant velocity
Q.23 Which of the following situations are not possible?
A. A body moving with constant acceleration but with zero velocity.
B. A body moving with a constant velocity in an accelerated motion
C. all of these
D. A body moving horizontally with an acceleration in vertical direction
Q.24 Which of the following is correct about the following distance – time graph?
A. speed of A is greater than speed of B
B. None of these.
C. speed of A is less than speed of B
D. speed of A is equal to speed of B
Q.25 Four cars A,B,C and D are moving on a levelled road. Their distance time graph is given below.The correct statement is
A. Car C is fastest
B. Car A is faster than car D
C. Car c is slowest
D. Car B is slowest
A. All of these
B. (a) and (d) are correct
C. (b) and (c) are correct
D. (a), (b) and (c) are correct

Answer 1

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