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Kinematics-1D

538 Questions Start Allen Test
All Exams Allen Advance Errorless
MP PMT 2000; RPET 2001 Basic Level Q76 Errorless Equation of Kinematics (uniform Acceleration) MCQ
A body of 5 kg is moving with a velocity of 20 m/s. If a force of 100 N is applied on it for 10s in the same direction as its velocity, what will now be the velocity of the body
A.
200 m/s
B.
220 m/s
C.
240 m/s
D.
260 m/s
CBSE PMT 2000; AFMC 2001 Basic Level Q77 Errorless Equation of Kinematics (uniform Acceleration) MCQ
A particle is constrained to move on a straight line path. It returns to the starting point after 10 sec. The total distance covered by the particle during this time is 30 m. Which of the following statements about the motion of the particle is false
A.
Displacement of the particle is zero
B.
Average speed of the particle is 3 m/s
C.
Displacement of the particle is 30 m
D.
Both
EAMCET (Engg.) 2000 Basic Level Q78 Errorless Equation of Kinematics (uniform Acceleration) MCQ
A constant force acts on a body of mass 0.9 kg at rest for 10s. If the body moves a distance of 250 m, the magnitude of the force is
A.
3N
B.
3.5N
C.
4.0N
D.
4.5N
AIIMS 2000; CBSE PMT 2002 Basic Level Q79 Errorless Motion Under Gravity MCQ
From the top of a tower, a particle is thrown vertically down wards with a velocity of 10 m/s. The ratio of the distances covered by it in the $3^{rd}$ and $2^{nd}$ seconds of the motion is (Take $g = 10 \, m/s^{2}$ )
A.
5:7
B.
7:5
C.
3:6
D.
6:3
EAMCET (Engg.) 2000 Basic Level Q80 Errorless Motion Under Gravity MCQ
A body thrown vertically upwards with an initial velocity u reaches maximum height in 6 seconds. The ratio of the distances travelled by the body in the first second and the seventh second is
A.
1:1
B.
11:1
C.
1:2
D.
1:11
RPET 2000; KCET (Engg./Med.) 2001; DPMT 2001 Basic Level Q81 Errorless Motion Under Gravity MCQ
A body is thrown vertically upwards. If air resistance is to be taken into account, then the time during which the body rises is
A.
Equal to the time of fall
B.
Less than the time of fall
C.
Greater than the time of fall
D.
Twice the time of fall
IIT-JEE 1999 Q82 Advance ARCHIVE: JEE ADVANCED MCQ
In 1.0 second a particle goes from point A to point B moving in a semi-circle of radius 1.0 metre (figure). The magnitude of the average velocity is
A.
$3.14\mathrm{ms}^{-1}$
B.
$2.0\mathrm{ms}^{-1}$
C.
$1.0\mathrm{ms}^{-1}$
D.
ZERO
IIT-JEE 1999 Q83 Advance ARCHIVE: JEE ADVANCED MSQ
The co-ordinates of a particle moving in a plane are given by $x = a \cos(pt)$ and $y = b \sin(pt)$ where a, $b (< a)$ and p are positive constants of appropriate dimensions. Then
A.
the path of the particle is an ellipse.
B.
the velocity and acceleration of the particle are normal to each other at $t = \frac{\pi}{2p}$ .
C.
the acceleration of the particle is always directed towards the focus.
D.
the distance travelled by the particle in time interval $t = 0$ to $t = \frac{\pi}{2p}$ is $a$ .
RPET 1999 Basic Level Q84 Errorless Equation of Kinematics (uniform Acceleration) MCQ
Two cars A and B are at rest at same point initially. If A starts with uniform velocity of 40 m/sec and B starts in the same direction with constant acceleration of $4 \, m/s^{2}$ , then B will catch A after how much time
A.
10 sec
B.
20 sec
C.
30 sec
D.
35 sec
RPMT 1999 Basic Level Q85 Errorless Motion Under Gravity MCQ
Time taken by an object to reach the height of $h_{1}$ and $h_{2}$ is respectively $t_{1}$ and $t_{2}$ then the ratio of $t_{1}$ to $t_{2}$ is
A.
$h_{1}:h_{2}$
B.
$\sqrt{h_{1}}:\sqrt{h_{2}}$
C.
$h_{1}:2h_{2}$
D.
$2h_{1}:h_{2}$
AFMC 1999 Basic Level Q86 Errorless Motion Under Gravity MCQ
A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 sec. The height of the bridge is
A.
4.9 m
B.
9.8 m
C.
19.8 m
D.
24.7 m
SCRA 1998; DCE 2000 Basic Level Q87 Errorless Velocity Time Graph MCQ
An object is moving with a uniform acceleration which is parallel to its instantaneous direction of motion. The displacement (s) -velocity (v) graph of this object is
A.
B.
C.
D.
SCRA 1998 Basic Level Q88 Errorless Equation of Kinematics (uniform Acceleration) MCQ
If a train travelling at 72 kmph to be brought to rest in distance of 200 metres, then its retardation should be
A.
$20 ms^{-2}$
B.
$10 ms^{-2}$
C.
$2 ms^{-2}$
D.
$1 ms^{-2}$
CBSE PMT 1998, 99; AFMC 2000; JIPMER 2001, 02 Basic Level Q89 Errorless Equation of Kinematics (uniform Acceleration) MCQ
A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2 m. If the same car is moving with a speed of 80 km/h, what is the minimum stopping distance
A.
8 m
B.
2 m
C.
4 m
D.
6 m
MNR 1998 Basic Level Q90 Errorless 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 Q91 Errorless 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 Q92 Errorless 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 Q93 Errorless 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 Q94 Errorless 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 Q95 Errorless 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 Q96 Errorless 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 Q97 Errorless 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 Q98 Errorless 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 Q99 Errorless 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 Q100 Errorless 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