Q.1.
In the figure there is a graph of a → x for a moving particle. Hence da/dt=...v
-
60%
a)xo / ao
-
20%
b) -xo / ao
-
0%
c)-ao / xo
-
20%
d)ao / xo
Q.2.
A particle is moving in a straight line with initial velocity of 10 m/s. A graph of acceleration → time of the particle is given in the figure. Find velocity at t=10 s
-
40%
a) 25
-
20%
b) 35
-
40%
c)45
-
0%
d)15
Q.3.
A graph of moving body with constant acceleration is given in the figure. What is the velocity after time t?
-
33%
a)
-
67%
b)
-
0%
c)
-
0%
d)
Q.4.
The graph given in the figure shows that the body is moving with .....
-
50%
a) increasing acceleration
-
50%
b) decreasing acceleration
-
0%
c) constant velocity
-
0%
d) increasing velocity
Q.5.
Here are the graphs of velocity → time of two cars A and B, Find the ratio of the acceleration after time t.
-
0%
a)1/√3
-
75%
b) 1/3
-
0%
c)√3
-
25%
d)3
Q.6.
Here is a velocity - time graph of a motorbike moving in one direction. Calculate the distance covered by it in last two seconds.
-
67%
a) 10 m
-
33%
b) 20 m
-
0%
c)50 m
-
0%
d)25 m
Q.7.
In the following figure acceleration (a) v/s time (t) graph is given. Hence V ∝ .....
-
75%
a)a
-
25%
b)√a
-
0%
c)a2
-
0%
d)a3
Explanation
Q.8.
The graph of displacement (x) → time (t) for an object is given in the figure. In which part ofthe graph the acceleration of the particle is positive ?
-
33%
a) OA
-
33%
b) AB
-
0%
c) O - A - B
-
33%
d) acceleration is not positive at any part.
Q.9.
An object moves in a straight line. It starts from the rest and its acceleration is 2ms–After reaching a certain point it comes back to the original point. In this movement its acceleration is -3ms-till it comes to rest.The total time taken for the movement is 5 second. Calculate the maximum velocity.
-
0%
a) 6 m/s
-
50%
b) 5 m/s
-
50%
c)10 m/s
-
0%
d)4 m/s
Explanation
Q.10.
Particles A and B are released from the same height at an interval of 2 s. After some time the distance between A and B is 100m. Calculate time t.
-
0%
a)8 s
-
67%
b)6 s
-
33%
c)3 s
-
0%
d)12 s
Q.11.
A particle is moving in a circle of radius R with constant speed. It covers an angle θ in sometime interval. Find displacement in this interval of time.
-
33%
a)2R sin(θ/2)
-
33%
b) 2Rcos(θ/2)
-
0%
c)2Rcosθ
-
33%
d)2Rsinθ
Explanation
Q.12.
A freely falling stone crashes through a horizontal glass plate at time t and losses half of its velocity. After time t/2 it falls on the ground. The glass plate is 60 m high from the ground. Find the total distance travelled by the stone. [g=10ms–2]
-
50%
a) 120 m
-
0%
b) 80 m
-
50%
c) 100 m
-
0%
d) 140 m
Q.13.
A freely falling object travels distance H. Its velocity is V. Hence, in travelling further distance of 4H its velocity will become ....
-
50%
a)√3 V
-
0%
b) √5 V
-
0%
c)2V
-
50%
d)3V
Q.14.
Two particles P and Q get 5 m closer each second while travelling in opposite direction. They get 1 m closer each second while travelling in same direction. The speeds of P and Q are respectively ...
-
50%
a)5 m/s, 1 m/s
-
0%
b)3 m/s, 4 m/s
-
50%
c)3 m/s, 2 m/s
-
0%
d)10 m/s, 5 m/s
Q.15.
Motion of a particle is described by following equation, where v, y and A are velocity distance and a constant respectively. Find the acceleration of the particle
-
0%
a)1 unit
-
100%
b) 2 unit
-
0%
c)1/2 unit
-
0%
d)3 unit
Explanation
Q.16.
A goods train is moving with constant acceleration. when engine passes through a signal its speed is U. Midpoint of the train passes the signal with speed V. What will be the speed of the last wagon ?
-
33%
a)
-
67%
b)
-
0%
c)
-
0%
d)
Q.17.
A ball is thrown vertically upward. What is the velocity and acceleration of the ball at the maximum height ?
-
50%
a)–gt m/s, 0
-
0%
b)0, –9 ms–2
-
0%
c)g ms, 0
-
50%
d)0, –g ms–2
Q.18.
The relation between velocity and position of a particle is V=Ax + B where A and B are constants.Acceleration of the particle is 10 ms–2 when its velocity is V, How much is the acceleration when its velocity is 2V.
-
0%
a)20 ms–2
-
0%
b)10 ms–2
-
50%
c)5 ms–2
-
50%
d)0
Q.19.
A particle moves on a plane along the path y=Ax3 + B in such a way that dx/dt=C. A, C, B are constant Calculate the acceleration of the particle.
-
0%
a) 3AxC jms–2
-
0%
b)6AxC2 jms–2
-
50%
c)3AxC2 jms–2
-
50%
d)(Ci + 3AxC2 j )ms–2
Explanation
Q.20.
In the triangle AC=5, BC=8 and B=π/6 Find the value of angle A.
-
0%
a) sin-10.6
-
0%
b) sin-10.8
-
0%
c) sin-10.12
-
100%
d) sin-10.4
Explanation
Q.21.
The SR-71 strategic reconnaissance aircraft, the Blackbird,set a world speed record by flying from London to Los Angeles (8,790 km) in 3 hr 47 min 36 s.Compute the average speed in meters per second (m/s).
-
0%
a)0.644 m/s
-
50%
b) 644 m/s
-
0%
c)648 m/s
-
50%
d)814 m/s
Q.22.
In 1976, the SR-71 strategic reconnaissance aircraft, the Blackbird, recaptured the 1000 km (1,000,000 m) closed-circuit-course record (previously held by the Russian MIG-25 Foxbat) at an average speed of 935 m/s. How much time it will take to for one round
-
50%
a) 1068.38 sec
-
50%
b) 17.8 min
-
0%
c)35.65 min
-
0%
d)1000 sec
Q.23.
Suppose you fire a bullet (speed 1600 m/s) in a shooting gallery and hear the gong on the target ring 0.731 s later. Taking the speed of sound to be 330 m/s and assuming the bullet travels straight downrange at a constant speed, how far does the bullet travel before hitting the target?
-
0%
a)1170 m
-
0%
b) 330 m
-
100%
c)241 m
-
0%
d)200 m
Explanation
Q.24.
Julie drives 100 km to Grandmother's house. On the way toGrandmother's, Julie drives half the distance at 35 km/hr and half the distance at 55 km/hr. What is Julie's average speed on the way to Grandmother's house?
-
0%
a) 42.73 km/hr
-
50%
b) 45 km/hr
-
0%
c) 60 km/hr
-
50%
d)55 km/hr
Explanation
Q.25.
A motorcyclist rides onto a road at 22.2 m/s at 1200 noon and maintains that speed for the rest of her journey. At 1201 a car travelling at 27.8 m/s turns onto the road at the same point as did the motorcycle. How many seconds after the motorcycle started will it be passed by the car?
-
0%
a)48 sec
-
50%
b) 102 sec
-
50%
c) 298 sec
-
0%
d)78 sec
Q.26.
A body is thrown with a velocity of 9.8 m/s in the vertical upward direction. Its velocity after one second is
-
0%
a) 9.8 m/s
-
50%
b) 4.5 m/s
-
0%
c)2.45 m/s
-
50%
d)zero
Q.27.
A heavy and light body of same size are dropped from top of a tower in air, from the same height. Which will reach the ground first
-
33%
a) lighter body
-
0%
b) heavier body
-
0%
c)both will reach simultaneously
-
67%
d)not sure
Q.28.
An object is projected up wards with velocity of 100 m/sec. it will strike the ground in approximately ( g=10 m/sec2)
-
50%
a) 10 sec
-
0%
b) 20 sec
-
0%
c) 15 sec
-
50%
d) 5 sec
Q.29.
A : The speed of a body can be negative
R : If the body is moving in the opposite direction of positive motion, then its speed is negative
-
50%
a) A and R both true, and R is correct explanation for A
-
0%
b) A and R both true and R is not a correct explanation for A
-
0%
c) A is true but R is false
-
50%
d) Both A and B are false
Q.30.
If the velocity of a particle is v = At + Bt2, where A and B are constants, then the distance travelled by it between 1s and 2s is ….[ AIPMT/ NEET part I -2016]
-
0%
a)
-
100%
b) 3A + 7B
-
0%
c)
-
0%
d)
Explanation
