Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 81

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An aeroplane is flying horizontally with a velocity of $600 {k m h}^{- 1}$ and at a height of $1960 m$ . When it is vertically above a point $A$ on the ground a bomb is released from it. The bomb strikes the ground at point $B .$ The distance $A B$ is

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Important Questions on Kinematics

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 83

At the height

80 m,

an aeroplane is moving with

150 m s^{- 1} .

A bomb is dropped from it so as to hit a target. At what distance from the target should the bomb be dropped (given

g = 10 m s^{- 2}

)

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 84

A boy playing on the roof of a

10 m

high building throws a ball with a speed of

10 m s^{- 1}

at an angle of

30^{\circ}

with the horizontal. How far from the throwing point will the ball be at the height of

10 m

from the ground?

[g = 10 m s^{- 2}, sin 3 0^{\circ} = \frac{1}{2}, cos 3 0^{\circ} = \sqrt{\frac{3}{2}}]

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 85

An aeroplane flying

490 m

above the ground level at

100 m / s,

releases a black. How far-on the ground will it strike-

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 87

A body is thrown horizontally with a velocity

\sqrt{2 g h}

from the top of a tower of height

h .

It strikes the level ground through the foot of the tower at a distance

x

from the tower. The value of

x

is :

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 89

An aeroplane, moving horizontally with a speed of

180 km h^{- 1}

, drops a food packet while flying at a height of

490 m

. The horizontal range of the packet is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 90

A plane is flying horizontally at

98 m s^{- 1}

and releases an object which reaches the ground in

10 s

. The angle made by it while hitting the ground is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 95

A cricketer hits a ball with a velocity

25 m s^{- 1}

at

60 °

above the horizontal. How far above the ground it passes over a fielder

50 m

from the bat (assume the ball is struck very close to the ground)

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 96

A particle reaches its highest point when it has covered exactly one half of its horizontal range. The corresponding point on the displacement time graph is characterised by-

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