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Kinematics-1D

135 Questions Start Errorless Test
All Exams Allen Advance Errorless
MNR 1998 Basic Level Q26 Errorless 8. Motion Under Gravity MCQ
A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A.
$3s$
B.
$5s$
C.
$7s$
D.
$9s$
AFMC 1997 Basic Level Q27 Errorless 6. Equation of Kinematics (uniform Acceleration) MCQ
If a body starts from rest and travels 120 cm in the 6th second, then what is the acceleration
A.
$0.20 \, m/s^{2}$
B.
$0.027 \, m/s^{2}$
C.
$0.218 \, m/s^{2}$
D.
$0.03 \, m/s^{2}$
BHU 1997; CPMT 1997 Basic Level Q28 Errorless 8. Motion Under Gravity MCQ
A ball is dropped on the floor from a height of 10 m. It rebounds to a height 2.5 m. If the ball is in contact with the floor for 0.01 sec, the average acceleration during contact is
A.
$2100 \, m / sec^{2}$ downwards
B.
$2100 \, m / sec^{2}$ upwards
C.
$1400 \, m / sec^{2}$
D.
$700 \, m / sec^{2}$
RPET 1996 Basic Level Q29 Errorless 2. Speed and Velocity MCQ
A car moves for half of its time at 80 km/h and for rest half of time at 40 km/h. Total distance covered is 60 km. What is the average speed of the car
A.
60 km/h
B.
80 km/h
C.
120 km/h
D.
180 km/h
CBSE PMT 1996; KCET 2002 Basic Level Q30 Errorless 8. Motion Under Gravity MCQ
A body dropped from a height h with an initial speed zero, strikes the ground with a velocity 3 km/h. Another body of same mass is dropped from the same height h with an initial speed $-u' = 4 \, km/h$ . Find the final velocity of second body with which it strikes the ground
A.
3 km / h
B.
4 km / h
C.
5 km / h
D.
12 km / h
EAMCET (Engg.)1995 Basic Level Q31 Errorless 3. Acceleration MCQ
The displacement is given by $x = 2t^{2} + t + 5$ , the acceleration at t = 2s is
A.
$4m/s^{2}$
B.
$8m/s^{2}$
C.
$10m/s^{2}$
D.
$15m/s^{2}$
MNR 1995; UPSEAT 2000 Basic Level Q32 Errorless 3. Acceleration MCQ
The velocity of a body depends on time according to the equation $v = 20 + 0.1t^{2}$ . The body is undergoing
A.
Uniform acceleration
B.
Uniform retardation
C.
Non-uniform acceleration
D.
Zero acceleration
MP PET 1995 Basic Level Q33 Errorless 6. Equation of Kinematics (uniform Acceleration) MCQ
A particle moving with a uniform acceleration travels 24 m and 64 m in the first two consecutive intervals of 4 sec each. Its initial velocity is
A.
1 m / sec
B.
10 m / sec
C.
5 m / sec
D.
2 m / sec
EAMCET (Engg.) 1995 Basic Level Q34 Errorless 8. Motion Under Gravity MCQ
A body is projected up with a speed ā€˜uā€™ and the time taken by it is T to reach the maximum height H. Pick out the correct statement
A.
It reaches H/2 in T/2 sec
B.
It acquires velocity u/2 in T/2 sec
C.
Its velocity is u/2 at H/2
D.
Same velocity at 2T
CBSE PMT 1994; JIPMER 2001, 02 Basic Level Q35 Errorless 3. Acceleration MCQ
A particle moves along a straight line such that its displacement at any time t is given by $S = t^{3} - 6t^{2} + 3t + 4$ metres. The velocity when the acceleration is zero is
A.
$3 ms^{-1}$
B.
$-12 ms^{-1}$
C.
$42 ms^{-1}$
D.
$-9 ms^{-1}$
ISM Dhanbad 1994 Basic Level Q36 Errorless 8. Motion Under Gravity MCQ
P, Q and R are three balloons ascending with velocities U, 4U and 8U respectively. If stones of the same mass be dropped from each, when they are at the same height, then
A.
They reach the ground at the same time
B.
Stone from P reaches the ground first
C.
Stone from R reaches the ground first
D.
Stone from Q reaches the ground first
NCERT 1990 Basic Level Q37 Errorless 1. Distance and Displacement MCQ
An athlete completes one round of a circular track of radius R in 40 seconds. What will be his displacement at the end of 2 minutes 20 seconds
A.
Zero
B.
2R
C.
$2\pi R$
D.
$7\pi R$
NCERT 1990 Basic Level Q38 Errorless 3. Acceleration MCQ
The displacement of a body is given to be proportional to the cube of time elapsed. The magnitude of the acceleration of the body is
A.
Increasing with time
B.
Decreasing with time
C.
Constant but not zero
D.
Zero
CBSE PMT 1989 Basic Level Q39 Errorless 2. Speed and Velocity MCQ
A car travels a distance of 2000 m. If the first half distance is covered at 40 km/hour and the second half with speed v and the average speed is 48 km/hour, then the value of v is
A.
56 km/hour
B.
60 km/hour
C.
50 km/hour
D.
48 km/hour
MNR 1987; MP PET 1996 Basic Level Q40 Errorless 2. Speed and Velocity MCQ
A particle moves along x-axis in such a way that its coordinate x varies with time t according to the equation $x = (2 - 5t + 6t^{2})m$ . The initial velocity of the particle is
A.
-5 m/s
B.
6 m/s
C.
-3 m/s
D.
3 m/s
CPMT 1986 Basic Level Q41 Errorless 4. Position Time Graph MCQ
The graph between the displacement x and time t for a particle moving in a straight line is shown in figure. During the interval OA, AB, BC and CD, the acceleration of the particle is OA AB BC CD
A.
OA-+, AB-ā—‹, BC-+, CD-+
B.
OA-+, AB-ā—‹, BC-+, CD-ā—‹
C.
OA-+, AB-ā—‹, BC-āˆ’, CD-+
D.
OA-āˆ’, AB-ā—‹, BC-āˆ’, CD-ā—‹
MNR 1986 Basic Level Q42 Errorless 8. Motion Under Gravity MCQ
A man in a balloon rising vertically with an acceleration of $4.9 \, m/sec^{2}$ releases a ball 2 sec after the balloon is let go from the ground. The greatest height above the ground reached by the ball is $(g = 9.8 \, m/sec^{2})$
A.
14.7 m
B.
19.6 m
C.
9.8 m
D.
24.5 m
NCERT 1982 Advance Level Q43 Errorless 6. Equation of Kinematics (uniform Acceleration) MCQ
A point moves with uniform acceleration and $v_{1}, v_{2}$ and $v_{3}$ denote the average velocities in the three successive intervals of time $t_{1}, t_{2}$ and $t_{3}$ . Which of the following relations is correct
A.
$(v_{1}-v_{2}):(v_{2}-v_{3})=(t_{1}-t_{2}):(t_{2}+t_{3})$
B.
$(v_{1}-v_{2}):(v_{2}-v_{3})=(t_{1}+t_{2}):(t_{2}+t_{3})$
C.
$(v_{1}-v_{2}):(v_{2}-v_{3})=(t_{1}-t_{2}):(t_{1}-t_{3})$
D.
$(v_{1}-v_{2}):(v_{2}-v_{3})=(t_{1}-t_{2}):(t_{2}-t_{3})$
NCERT 1981 Basic Level Q44 Errorless 8. Motion Under Gravity MCQ
A body is released from the top of a tower of height h. It takes t sec to reach the ground. Where will be the ball after time t/2 sec
A.
At h/2 from the ground
B.
At h/4 from the ground
C.
Depends upon mass and volume of the body
D.
At $3h / 4$ from the ground
NCERT 1971 Basic Level Q45 Errorless 4. Position Time Graph MCQ
The displacement versus time graph for a body moving in a straight line in shown in figure. Which of the following regions represents the motion when no force is acting on the body
A.
ab
B.
bc
C.
cd
D.
de
IIT-JEE 1970 Basic Level Q46 Errorless 5. Velocity Time Graph MCQ
A lift is going up. The variation in the speed of the lift is as given in the graph. What is height to which the lift takes the passenger
A.
3.6 m
B.
28.8 m
C.
36.0 m
D.
Cannot be calculated from the above graph
Basic Level Q47 Errorless 1. Distance and Displacement MCQ
A boy stops after travelling 3 km towards east and then goes 4 km towards north along a plane road. The resultant displacement of the boy is
A.
7 km
B.
4 km
C.
5 km
D.
15 km
Basic Level Q48 Errorless 1. Distance and Displacement MCQ
If the displacement of a particle is zero, then what can we say about its distance covered
A.
It must be zero
B.
It cannot be zero
C.
It is negative
D.
It may or may not be zero
Basic Level Q49 Errorless 1. Distance and Displacement MCQ
The location of a particle has changed. What can we say about the displacement and the distance covered by the particle
A.
Both cannot be zero
B.
One of the two may be zero
C.
Both must be zero
D.
If one is positive, the other is negative and vice versa
Advance Level Q50 Errorless 1. Distance and Displacement MCQ
A particle moves along a circular arc of radius $R$ making an angle of $\theta$ at centre. The magnitude of displacement is
A.
$2R\sin \theta / 2$
B.
$2R\sin \theta$
C.
$R\sin \theta / 2$
D.
$R\sin \theta$