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Kinematics-1D

238 Questions Start Errorless Test
All Exams Allen Objective Errorless
BCECE 2004 Q151 Errorless 3. Non-uniform Motion MCQ
An object accelerates from rest to a velocity 27.5 m/s in 10 sec then find distance covered by object in next 10 sec
A.
550 m
B.
137.5 m
C.
412.5 m
D.
275 m
MP PMT 2004 Q152 Errorless 3. Non-uniform Motion MCQ
A car starts from rest and moves with uniform acceleration $a$ on a straight road from time $t = 0$ to $t = T$ . After that, a constant deceleration brings it to rest. In this process the average speed of the car is
A.
$\frac{aT}{4}$
B.
$\frac{3aT}{2}$
C.
$\frac{aT}{2}$
D.
$aT$
J & K CET 2004 Q153 Errorless 4. Relative Motion MCQ
A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passenger in the train is
A.
East-north direction
B.
West-north direction
C.
South-east direction
D.
None of these
UPSEAT 2004 Q154 Errorless 5. Motion Under Gravity MCQ
A body is thrown vertically upwards with velocity u. The distance travelled by it in the fifth and the sixth seconds are equal. The velocity u is given by $(g = 9.8 \, m/s^{2})$
A.
24.5 m/s
B.
49.0 m/s
C.
73.5 m/s
D.
98.0 m/s
Pb. PMT 2004 Q155 Errorless 5. Motion Under Gravity MCQ
The effective acceleration of a body, when thrown upwards with acceleration $a$ will be
A.
$\sqrt{a - g^2}$
B.
$\sqrt{a^2 + g^2}$
C.
$(a - g)$
D.
$(a + g)$
Pb. PMT 2004 Q156 Errorless 5. Motion Under Gravity MCQ
A packet is dropped from a balloon which is going upwards with the velocity 12 m/s, the velocity of the packet after 2 seconds will be
A.
-12 m/s
B.
12 m/s
C.
-7.6 m/s
D.
7.6 m/s
AIEEE 2004 Q157 Errorless 5. Motion Under Gravity MCQ
A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in T/3 seconds
A.
h/9 meters from the ground
B.
7h/9 meters from the ground
C.
8h/9 meters from the ground
D.
17h/18 meters from the ground
IIT-JEE (Screening) 2004 Q158 Errorless 6. Critical Thinking MCQ
A particle starts from rest. Its acceleration (a) versus time (t) is as shown in the figure. The maximum speed of the particle will be
A.
110 m/s
B.
55 m/s
C.
550 m/s
D.
660 m/s
IIT-JEE (Screening) 2004; NEET 2021 Q159 Errorless 6. Critical Thinking MCQ
A small block slides without friction down an inclined plane starting from rest. Let $S_{n}$ be the distance travelled from time $t = n - 1$ to $t = n$ . Then $\frac{S_n}{S_{n + 1}}$ is
A.
$\frac{2n - 1}{2n}$
B.
$\frac{2n + 1}{2n - 1}$
C.
$\frac{2n - 1}{2n + 1}$
D.
$\frac{2n}{2n + 1}$
AIIMS 2004 Q160 Errorless 7. Graphical Questions MCQ
Which of the following velocity-time graphs shows a realistic situation for a body in motion
A.
B.
C.
D.
Kerala PMT 2004 Q161 Errorless 7. Graphical Questions MCQ
Which of the following velocity-time graphs represent uniform motion
A.
B.
C.
D.
DPMT 2004 Q162 Errorless 7. 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 Q163 Errorless 2. 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 Q164 Errorless 3. 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 Q165 Errorless 3. 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 Q166 Errorless 3. 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 Q167 Errorless 4. 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 Q168 Errorless 5. 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 Q169 Errorless 5. 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 Q170 Errorless 6. 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 Q171 Errorless 6. 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 Q172 Errorless 7. 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 Q173 Errorless 7. Graphical Questions MCQ
Which graph represents the uniform acceleration
A.
B.
C.
D.
AMU (Med.) 2002 Q174 Errorless 2. 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 Q175 Errorless 2. 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