A ball of mass m1 and another ball of mass m2 are dropped from equal height. If time taken by the balls are t1 and t2 respectively, then 

1. t1=t22

2. t1=t2

3. t1=4t2

4. t1=t24 

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
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A body sliding on a smooth inclined plane requires 4 seconds to reach the bottom starting from rest at the top. How much time does it take to cover one-fourth distance starting from rest at the top 

(1) 1 s

(2) 2 s

(3) 4 s

(4) 16 s

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
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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

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The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane 9.8 m long (angle of inclination is 30o) is

(1) 12sec

(2) 2 sec

(3) 4 sec

(4) 1 sec

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
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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

Concept Questions :-

Uniformly accelerated motion
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: