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Which of the following is a complete sentence?

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Important Questions on Locomotion and Movement

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

Two finite sets respectively have

x

and

y

number of elements. The total number of sub sets of the first is

56

more than the total no. of sub sets of the second. The value of

x, y

are respectively __________

EASY

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Which of the following is an empty set?

EASY

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The set of cubes of natural numbers is

HARD

Biology>Human Physiology>Locomotion and Movement>Types of Movement

Let

a > 0, a \neq 1

. Then, the set

S

of all positive real numbers

b

satisfying

(1 + a^{2}) (1 + b^{2}) = 4 a b

EASY

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The following Venn diagram indicates

Question Image

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

Let

A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} .

Then the number of subsets of

A

containing two or three elements is

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

In an elastic collision of two billiard balls, which of the following quantities remain conserved during the short time of collision of the balls (i.e., when they are in contact).

(b) Total linear momentum? Give reason for your answer in each case.

EASY

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A truck and a car are moving with same kinetic energy. Both are brought to rest by applying the same retarding force.

S_{1}

is the distance travelled by truck before coming to rest and

S_{2}

is the distance travelled by the car before coming to rest.

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A bullet of mass $m$ fired at $30 °$ to the horizontal leaves the barrel of the gun with a velocity $v .$ The bullet hits a soft target at a height $h$ above the ground while it is moving downward and emerges out with half the kinetic energy it had before hitting the target. Which of the following statements are correct in respect of bullet after it emerges out of the target?

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Suppose the average mass of raindrops is

3 \times 10^{- 5} kg

and their average terminal velocity

9 {ms}^{- 1}

. Calculate the energy transferred by rain to each square metre of the surface at a place which receives

100 cm

of rain in a year.

MEDIUM

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An electron and a proton are detected in a cosmic ray experiment, the first with kinetic energy

10 keV

, and the second with

100 keV

. Which is faster, the electron or the proton? Obtain the ratio of their speeds. (electron mass

= 9.11 \times 10^{- 31} kg

, proton mass

= 1.67 \times 10^{- 27} kg

1 eV = 1.60 \times 10^{- 19} J

)

EASY

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If a man speeds up by

1 m s^{- 1}

, his KE increase by

44 %

. His original speed in

m s^{- 1}

EASY

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Two bodies

A

and

B

have masses

20 k g a n d 5 kg

respectively. Each one is acted upon by a force of

4 kgf

. If they acquire the same kinetic energy in time

t_{A}

and

t_{B}

respectively. Then the ratio of

\frac{t_{A}}{t_{B}}

is
(Assume

g = 10 m s^{- 2}

)

EASY

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When an ideal gas is compressed adiabatically, temperature rises and the molecules on the average have more kinetic energy than before. The kinetic energy increases

EASY

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A light and heavy body have equal kinetic energy. Which has greater momentum?

MEDIUM

Biology>Human Physiology>Locomotion and Movement>Types of Movement

In an elastic collision of two billiard balls, which of the following quantities remain conserved during the short time of collision of the balls (i.e., when they are in contact).

(a) Kinetic energy.

Give reasons for your answer.

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

A machine, which is

75 %

efficient, uses

12 J

of energy in lifting up a

1 kg

mass through a certain distance. The mass is then allowed to fall through that distance. The velocity at the end of its fall is (in

{ms}^{- 1}

)

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

In a ballistics demonstration a police officer fires a bullet of mass

50 g

with speed

200 {ms}^{- 1}

on soft plywood of thickness

2 cm

. The bullet emerges with only

10 %

of its initial kinetic energy. The emergent speed of the bullet is

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

A bullet fired from a gun with a velocity of

10^{4} m s^{- 1}

goes through a bag full of straw. If the bullet loses half of its kinetic energy in the bag, its velocity when it comes out of the bag will be

EASY

Biology>Human Physiology>Locomotion and Movement>Types of Movement

A running man has half the kinetic energy of a boy. Mass of man is double the mass of the boy. The man speeds up by

1.0 m s^{- 1}

and then he has same energy as the boy. The original speeds of the man and boy respectively are

Which of the following is a complete sentence?

Important Questions on Locomotion and Movement

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