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 |
 88%
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 \(5\) s. After what time will it reach the ground from the position of maximum height?

1. \(1.2\) s 2. \(5\) s
3. \(10\) s 4. \(25\) s
Subtopic:  Uniformly Accelerated Motion |
 81%
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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A particle is thrown vertically upwards. If its velocity at half of the maximum height is 10 m/s, then maximum height attained by it is (Take g = 10 m/s2

1. 8 m

2. 10 m

3. 12 m

4. 16 m

Subtopic:  Uniformly Accelerated Motion |
 87%
From NCERT
PMT - 2001
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A body, thrown upwards with some velocity, reaches the maximum height of 20m. Another body with double the mass thrown up, with double initial velocity will reach a maximum height of 

1. 200 m

2. 16 m

3. 80 m

4. 40 m

Subtopic:  Uniformly Accelerated Motion |
 80%
From NCERT
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A balloon starts rising from the ground with an acceleration of 1.25 m/s2 . After 8s, a stone is released from the balloon. The stone will (g = 10 m/s2

1. Reach the ground in 4 second

2. Begin to move down after being released

3. Have a displacement of 50 m

4. Cover a distance of 40 m in reaching the ground

Subtopic:  Uniformly Accelerated Motion |
From NCERT
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