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
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For the following acceleration versus time graph the corresponding velocity versus displacement graph is
1.
2.
3.
4.
Difficulty Level:
A particle is moving along the path y = from x = 0 m to x = 2 m. Then the distance traveled by the particle is:
1. 4 m
2.
3.
4.
Difficulty Level:
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 particles will take to meet each other is-
1.
2.
3.
4.
Difficulty Level:
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 , 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
Difficulty Level:
The acceleration a (in ) 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
2. 18
3. 14
4. 26
Difficulty Level:
A stone falls freely from rest from a height h and it travels a distance in the last second. The value of h is:
1. 145 m
2. 100 m
3. 122.5 m
4. 200 ms
Difficulty Level:
A point moves in a straight line under the retardation a. If the initial velocity is u, the distance covered in 't' seconds is-
1.
2.
3.
4.
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A particle is thrown upwards from ground. It experiences a constant resistance force which can produce retardation of 2 . The ratio of time of ascent to the time of descent is:
(1) 1:1
(2)
(3)
(4)
Difficulty Level:
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
Difficulty Level: