With what velocity a ball be projected vertically so that the distance covered by it in 5th second is twice the distance it covers in its 6th second (g=10m/s2) 

(1) 58.8 m/s

(2) 49 m/s

(3) 65 m/s

(4) 19.6 m/s

Subtopic:  Uniformly Accelerated Motion |
 72%
From NCERT
PMT - 1997
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A ball is dropped downwards. After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds 

1.  25 m
2.  20 m
3.  50 m
4.  9.8 m

Subtopic:  Uniformly Accelerated Motion |
 73%
From NCERT
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A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 sec. The height of the bridge is 

(1) 4.9 m

(2) 9.8 m

(3) 19.8 m

(4) 24.7 m

Subtopic:  Uniformly Accelerated Motion |
 70%
From NCERT
PMT - 2003
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A stone is shot straight upward with a speed of 20 m/sec from a tower 200 m high. The speed with which it strikes the ground is approximately 

(1) 60 m/sec

(2) 65 m/sec

(3) 70 m/sec

(4) 75 m/sec

Subtopic:  Uniformly Accelerated Motion |
 66%
From NCERT
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A body freely falling from the rest has a velocity ‘v’ after it falls through a height ‘h’. The distance it has to fall down for its velocity to become double, is 

(1) 2 h

(2) 4 h

(3) 6 h

(4) 8 h

Subtopic:  Uniformly Accelerated Motion |
 80%
From NCERT
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Velocity of a body on reaching the point from which it was projected upwards, is 

1. v=0

2. v=2u

3. v=0.5u

4. v=-u

Subtopic:  Uniformly Accelerated Motion |
 72%
From NCERT
AIIMS - 1999
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A body projected vertically upwards with a velocity u returns to the starting point in 4 seconds. If g = 10m/sec2, the value of u is  

(1) 5 m/sec

(2) 10 m/sec

(3) 15 m/sec

(4) 20 m/sec

Subtopic:  Uniformly Accelerated Motion |
 87%
From NCERT
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Time taken by an object falling from rest to cover the height of h1 and h2 is respectively t1 and t2 . Then the ratio of t1 to t2 is 

(1) h1 : h2

(2) h1:h2

(3) h1 : 2h2

(4) 2h1 : h2

Subtopic:  Uniformly Accelerated Motion |
 88%
From NCERT
PMT - 1999
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A body is thrown vertically up from the ground. It reaches a maximum height of 100 m in 5 seconds. After what time will it reach the ground from the position of maximum height?
1. 1.2 sec
2. 5 sec
3. 10 sec
4. 25 sec

Subtopic:  Uniformly Accelerated Motion |
 80%
From NCERT
PMT - 2000
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A body thrown vertically upwards with an initial velocity u reaches maximum height in 6 seconds. The ratio of the distances travelled by the body in the first second and the seventh second is 

(1) 1 : 1

(2) 11 : 1

(3) 1 : 2

(4) 1 : 11

Subtopic:  Uniformly Accelerated Motion |
 54%
From NCERT
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