A particle starts moving from rest state along a straight line under the action of a constant force and travel distance x in first 5 seconds. The distance travelled by it in the next five seconds will be

(1) x

(2) 2x

(3) 3x

(4) 4x

Subtopic:  Uniformly Accelerated Motion |
 71%
From NCERT
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A body is projected vertically upward with a speed 40 m/s. The distance travelled by the body in the last second of the upward journey is [take g = 9.8 m/s2 and neglect effect of air resistance]

(1) 4.9 m

(2) 9.8 m

(3) 12.4 m

(4) 19.6 m

Subtopic:  Uniformly Accelerated Motion |
 72%
From NCERT
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A body is projected vertically upward with a speed 10 m/s and another at the same time with the same speed in the downward direction from the top of a tower. The magnitude of acceleration of first body with respect to second is {take g = 10 m/s2}

(1) Zero

(2) 10 m/s2

(3) 5 m/s2

(4) 20 m/s2

Subtopic:  Acceleration |
 70%
From NCERT
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A car travelling at a speed of 30 km/h is brought to rest at a distance of 8 m by applying brakes. If the same car is moving at a speed of 60 km/h, then it can be brought to rest with the same brakes in:

1. 64 m

2. 32 m

3. 16 m

4. 4 m

Subtopic:  Uniformly Accelerated Motion |
 78%
From NCERT
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A particle is thrown with any velocity vertically upward, the distance travelled by the particle in the first second of its descent is:

(1) g

(2) g2

(3) g4

(4) Cannot be calculated

Subtopic:  Uniformly Accelerated Motion |
 79%
From NCERT
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A body is thrown vertically upwards and takes 5 seconds to reach maximum height. The distance traveled by the body will be the same in

(1) 1st and 10th second

(2) 2nd and 8th second

(3) 4th and 6th second

(4) Both (2) & (3)

Subtopic:  Uniformly Accelerated Motion |
From NCERT
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A ball is dropped from a bridge of 122.5 metre above a river. After the ball has been falling for two seconds, a second ball is thrown straight down after it. Initial velocity of the second ball so that both hit the water at the same time is

(1) 49 m/s

(2) 55.5 m/s

(3) 26.1 m/s

(4) 9.8 m/s

Subtopic:  Uniformly Accelerated Motion |
 58%
From NCERT
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A balloon starts from the ground from rest with an upward acceleration of 2 m/s2. After 1 sec, a stone is dropped from it. The time taken by the stone to strike the ground is approximately:

1. 0.3 s

2. 0.7 s

3. 1 s

4. 1.4 s

Subtopic:  Uniformly Accelerated Motion |
From NCERT
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A boy throws balls into the air at a regular interval of 2 seconds. The next ball is thrown when the velocity of the first ball is zero. How high do the ball rise above his hand? [Take g = 9.8 m/ s2]

(1) 4.9 m

(2) 9.8 m

(3) 19.6 m

(4) 29.4 m

Subtopic:  Uniformly Accelerated Motion |
 81%
From NCERT
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A ball projected from the ground vertically upward is at the same height at time t1 and t2. The speed of projection of ball is [Neglect the effect of air resistance]

(1) gt2-t1

(2) gt1+t22

(3) gt2-t12

(4) gt1+t2

Subtopic:  Uniformly Accelerated Motion |
 72%
From NCERT
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