A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 14

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IMPORTANT

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A stone falls freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in the first three seconds of its motion. The stone remains in air for (Use $g = 10 m s^{- 2}$ )

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Important Questions on Motion of a Particle

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11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 15

If a person can throw a stone vertically up to a maximum height of

h

metre, then the maximum distance through which he can throw it in the horizontal direction is

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 16

A particle moving with uniform acceleration moves

24 m

and

64 m

in two consecutive

4 s

interval. The initial velocity of the particle is

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 17

The acceleration in

{ms}^{- 2}

of a particle is given by a

a = 3 t^{2} + 2 t + 2

. At

t = 0

, the particle starts with a velocity

2 {ms}^{- 1}

. After

2 s

, the velocity will be

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 18

The displacement of a particle moving in a straight line is given by

S = (t^{3} - 6 t^{2} + 3 t + 4) m

. When there is no acceleration, the velocity is

EASY

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 19

A particle located at

x = 0

at time

t = 0

, starts moving along the

+ v e x

direction with a velocity

v

that varies as

v = a \sqrt{x}

. The displacement of the particle varies with time as

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 20

A box moves along a straight line by a machine delivering constant power. The distance moved by the body in time

t

is proportional to

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IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 21

The distance travelled by a body moving along a straight line at time

t

is given by

S = 3 - 4 t + 5 t^{2}

. The initial velocity of the body is

MEDIUM

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 5 - Motion of a Particle>EXERCISE>Q 22

The acceleration a (in

{ms}^{- 2}

) of a body, starting from rest varies with time

t

(in

s

) following the equation

a = 3 t + 4

. The velocity of the body at time

t = 2 s

will be