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

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

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

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

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

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

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

Concept Questions :-

Non-uniform acceleration
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Difficulty Level:

A body is thrown vertically upwards with a velocity u. Find the true statement from the following

(1) Both velocity and acceleration are zero at its highest point

(2) Velocity is maximum and acceleration is zero at the highest point

(3) Velocity is maximum and acceleration is g downwards at its highest point

(4) Velocity is zero at the highest point and maximum height reached is ${u}^{2}/2g$

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

A man throws a ball vertically upward and it rises through 20 m and returns to his hands. What was the initial velocity (u) of the ball and for how much time (T) it remained in the air $\left[g=10m/{s}^{2}\right]$

(1) u = 10 m/s, T = 2s

(2) u = 10 m/s, T = 4s

(3) u = 20 m/s, T = 2s

(4) u = 20 m/s, T = 4s

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

A particle when thrown, moves such that it passes from same height at 2s and 10s, the height is

(1) g

(2) 2 g

(3) 5 g

(4) 10 g

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

From the top of a tower, a particle is thrown vertically downwards with a velocity of 10 m/s. The ratio of the distances, covered by it in the 3rd and 2nd seconds of the motion is (Take $g=10m/{s}^{2}$

1. 5 : 7

2. 7 : 5

3. 3 : 6

4. 6 : 3

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, then

(1) Velocity of A is more than B at the ground

(2) Velocity of B is more than A at the ground

(3) Both A & B strike the ground with same velocity

(4) None of these

Concept Questions :-

Uniformly accelerated motion
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Difficulty Level:

A ball is dropped from top of a tower of 100m height. Simultaneously another ball was thrown upward from bottom of the tower with a speed of 50 m/s ($g=10m/{s}^{2}$). They will cross each other after

(1) 1 s

(2) 2 s

(3) 3 s

(4) 4 s

Concept Questions :-

Relative motion in 1-D