A ball is thrown upward with a certain speed. It passes through the same point at 3 second and 7 second from the start. The maximum height achieved by the ball is

1.  500 m

2.  250 m

3.  125 m

4.  450 m

Concept Questions :-

Uniformly accelerated motion
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For the following acceleration versus time graph the corresponding velocity versus displacement graph is 

1. 

2. 

3. 

4. 

Concept Questions :-

Uniformly accelerated motion
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A particle is moving along the path y = x2, from x = 0m to x = 2m. Then the distance traveled by the particle is:

1.  4m

2.  20m

3.  >20m

4.  <20m

Concept Questions :-

Distance and displacement
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Six particles situated at the corners of a regular hexagon of side a move at constant speed v. Each particle maintains a direction towards the particle at the next. The time which the particle will take to meet each other is

1.  2av sec

2.  av sec

3.  2a3v sec

4.  3av sec

Concept Questions :-

Relative motion in 1-D
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The displacement x of a particle moving in one dimension under the action of the constant force is related to time t by the equation t = x + 3, where x is in meters and t is in seconds. Find the displacement of the particle from t = 0 sec to t = 6 s.

1.  0

2.  12 m

3.  6 m

4.  18 m

Concept Questions :-

Non-uniform acceleration
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The acceleration a (in ms-2) of a body, starting from rest varies with time t(in s) following the equation a  =3t+4. The velocity of the body at time t = 2s will be :

1. 10 ms-1

2. 18 ms-1

3. 14 ms-1

4. 26 ms-1

Concept Questions :-

Non-uniform acceleration
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A stone falls freely from rest from a height h and it travels a distance 9h25 in the last second. The value of h is:

1. 145 m

2. 100 m

3. 122.5 m

4. 200 ms

Concept Questions :-

Uniformly accelerated motion
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A point moves in a straight line under the retardation av2. If the initial velocity is u, the distance covered in 't' seconds is-

1.  aut

2.  1aln aut

3.  1aln 1+aut

4.  a ln aut

Concept Questions :-

Non-uniform acceleration
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A particle is thrown upwards from ground. It experiences a constant resistance force which can produce retardation of 2 m/s2. The ratio of time of ascent to the time of descent is: [g=10 m/s2]

(1) 1:1

(2) 23

(3) 23

(4) 32

Concept Questions :-

Uniformly accelerated motion
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Two men P & Q are standing at corners A & B of square ABCD of side 8 m. They start moving along the track with constant speed 2 m/s and 10 m/s respectively. The time when they will meet for the first time, is equal to:

(1) 2 sec

(2) 3 sec

(3) 1 sec

(4) 6 sec

Concept Questions :-

Relative motion in 1-D
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Difficulty Level: