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Kinematics-1D

700 Questions Start Allen Test
All Exams Allen Objective Errorless
DPMT 2004 Q201 Errorless Graphical Questions MCQ
Acceleration-time graph of a body is shown. The corresponding velocity-time graph of the same body is
A.
B.
C.
D.
MP PMT 2003 Q202 Errorless Uniform Motion MCQ
If a car covers $2/5^{th}$ of the total distance with $v_{1}$ speed and $3/5^{th}$ distance with $v_{2}$ then average speed is
A.
$\frac{1}{2}\sqrt{v_{1}v_{2}}$
B.
$\frac{v_{1}+v_{2}}{2}$
C.
$\frac{2v_{1}v_{2}}{v_{1}+v_{2}}$
D.
$\frac{5v_{1}v_{2}}{3v_{1}+2v_{2}}$
KCET 2003; J & K CET 2005 Q203 Errorless Non-uniform Motion MCQ
A man is 45 m behind the bus when the bus start accelerating from rest with acceleration $2.5 \, m/s^{2}$ . With what minimum velocity should the man start running to catch the bus
A.
12 m/s
B.
14 m/s
C.
15 m/s
D.
16 m/s
Pb. PET 2003 Q204 Errorless Non-uniform Motion MCQ
A body is moving with uniform acceleration describes 40 m in the first 5 sec and 65 m in next 5 sec. Its initial velocity will be
A.
4 m/s
B.
2.5 m/s
C.
5.5 m/s
D.
11 m/s
MP PET 2003 Q205 Errorless Non-uniform Motion MCQ
A body $A$ moves with a uniform acceleration $a$ and zero initial velocity. Another body $B$ , starts from the same point moves in the same direction with a constant velocity $v$ . The two bodies meet after a time $t$ . The value of $t$ is
A.
$\frac{2v}{a}$
B.
$\frac{v}{a}$
C.
$\frac{v}{2a}$
D.
$\sqrt{\frac{v}{2a}}$
BHU 2003; CPMT 2004; RPMT 2006; AMU (Engg.) 2012 Q206 Errorless Relative Motion MCQ
A police jeep is chasing with velocity of 45 km/h a thief in another jeep moving with velocity 153 km/h. Police fires a bullet with muzzle velocity of 180 m/s. The velocity with which it will strike the car of the thief is
A.
150 m/s
B.
27 m/s
C.
450 m/s
D.
250 m/s
RPET 2003 Q207 Errorless Motion Under Gravity MCQ
A stone thrown upward with a speed u from the top of the tower reaches the ground with a velocity 3u. The height of the tower is
A.
$3u^{2}/g$
B.
$4u^{2}/g$
C.
$6u^{2}/g$
D.
$9u^{2}/g$
MH CET 2003; Pb. PMT 2004; WB-JEE 2010 Q208 Errorless Motion Under Gravity MCQ
If a freely falling body travels in the last second a distance equal to the distance travelled by it in the first three second, the time of the travel is
A.
6 sec
B.
5 sec
C.
4 sec
D.
3 sec
CBSE PMT 2003 Q209 Errorless Critical Thinking MCQ
A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given $g = 9.8m / s^2$ )
A.
At least $0.8\,m/s$
B.
Any speed less than $19.6\,m/s$
C.
Only with speed $19.6\,m/s$
D.
More than $19.6\,m/s$
CBSE PMT 2003 Q210 Errorless Critical Thinking MCQ
If a ball is thrown vertically upwards with speed $u$ , the distance covered during the last $t$ seconds of its ascent is
A.
$\frac{1}{2} gt^2$
B.
$ut - \frac{1}{2} gt^2$
C.
$(u - gt)t$
D.
$ut$
AIIMS 2003 Q211 Errorless Graphical Questions MCQ
A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored
A.
B.
C.
D.
DCE 2003, 09; WB-JEE 2009 Q212 Errorless Graphical Questions MCQ
Which graph represents the uniform acceleration
A.
B.
C.
D.
AMU (Med.) 2002 Q213 Errorless Uniform Motion MCQ
A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to
A.
5 km/h
B.
$\frac{25}{4}$ km/h
C.
$\frac{30}{4}$ km/h
D.
$\frac{45}{8}$ km/h
PET 2002; BHU 2004 Q214 Errorless Uniform Motion MCQ
The numerical ratio of displacement to the distance covered is always
A.
Less than one
B.
Equal to one
C.
Equal to or less than one
D.
Equal to or greater than one
MP PET 2002 Q215 Errorless Non-uniform Motion MCQ
The path of a particle moving under the influence of a force fixed in magnitude and direction is
A.
Straight line
B.
Circle
C.
Parabola
D.
Ellipse
Pb. PMT 2002 Q216 Errorless Non-uniform Motion MCQ
The engine of a motorcycle can produce a maximum acceleration $5 \, m/s^{2}$ . Its brakes can produce a maximum retardation $10 \, m/s^{2}$ . What is the minimum time in which it can cover a distance of 1.5 km
A.
30 sec
B.
15 sec
C.
10 sec
D.
5 sec
RPET 2002; WB-JEE 2009 Q217 Errorless Non-uniform Motion MCQ
Starting from rest, acceleration of a particle is $a = 2(t - 1)$ . The velocity of the particle at t = 5s is
A.
15 m/sec
B.
25 m/sec
C.
5 m/sec
D.
None of these
RPET 2002 Q218 Errorless Relative Motion MCQ
An express train is moving with a velocity $v_{1}$ . Its driver finds another train is moving on the same track in the same direction with velocity $v_{2}$ . To escape collision, driver applies a retardation a on the train. the minimum time of escaping collision will be
A.
$t = \frac{v_{1} - v_{2}}{a}$
B.
$t = \frac{v_{1}^{2} - v_{2}^{2}}{2}$
C.
None
D.
Both
Kerala PMT 2002 Q219 Errorless Motion Under Gravity MCQ
A body is released from a great height and falls freely towards the earth. Another body is released from the same height exactly one second later. The separation between the two bodies, two seconds after the release of the second body is
A.
4.9 m
B.
9.8 m
C.
19.6 m
D.
24.5 m
MP PMT 2002; MP PET 2006 Q220 Errorless Motion Under Gravity MCQ
A body falling from a high Minaret travels 40 m in the last 2 seconds of its fall to ground. Height of Minaret in meters is (take $g = 10m/s^{2}$ )
A.
60
B.
45
C.
80
D.
50
KCET 2002 Q221 Errorless Motion Under Gravity MCQ
A very large number of balls are thrown vertically upwards in quick succession in such a way that the next ball is thrown when the previous one is at the maximum height. If the maximum height is $5m$ , the number of ball thrown per minute is (take $g = 10ms^{-2}$ )
A.
120
B.
80
C.
60
D.
40
Kerala PMT 2002; MP PMT 2003 Q222 Errorless Motion Under Gravity MCQ
A cricket ball is thrown up with a speed of $19.6 \, ms^{-1}$ . The maximum height it can reach is
A.
9.8 m
B.
19.6 m
C.
29.4 m
D.
39.2 m
Odisha JEE 2002; CPMT 2003 Q223 Errorless Motion Under Gravity MCQ
A ball is dropped from top of a tower of 100m height. Simultaneously another ball was thrown upward from bottom of the tower with a speed of 50 m/s ( $g = 10m/s^{2}$ ). They will cross each other after
A.
1s
B.
2s
C.
3s
D.
4s
AIEEE 2002; Odisha JEE 2009 Q224 Errorless Motion Under Gravity MCQ
Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, then
A.
Velocity of A is more than B at the ground
B.
Velocity of B is more than A at the ground
C.
Both A & B strike the ground with same velocity
D.
None of these
AIIMS 2002 Q225 Errorless Motion Under Gravity MCQ
Three different objects of masses $m_{1}, m_{2}$ and $m_{3}$ are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of
A.
$m_{1}: m_{2}: m_{3}$
B.
$m_{1}: 2m_{2}: 3m_{3}$
C.
1:1:1
D.
$\frac{1}{m_{1}}: \frac{1}{m_{2}}: \frac{1}{m_{3}}$