Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 23

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If two projectiles are fired at the angles $30 °$ and $60 °$ respectively then the ratio of their horizontal ranges 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 24

A ball is thrown from a point with a speed

v_{0}

at angle of projection

θ .

From the same point and at the same instant, a person starts running with a constant speed

v_{0} / 2

to catch the ball? If yes, what should be the angle of projection?

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 25

A particle is projected at

60 °

to the horizontal with a kinetic energy

K

. The kinetic energy at the highest point is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 26

A bullet is fired horizontally from a rifle at a distant target. Ignoring the effect of air resistance, which of the following is correct?

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 27

A shell is fired vertically upwards with a velocity

v_{1}

from the deck of a ship travelling at a speed of

v_{2}

. A person on the shore observes the motion of the shell as a parabola. Its horizontal range is given by

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 28

The velocity of projection of an oblique projectile is

(6 \hat{i} + 8 \hat{j}) m s^{- 1}

. The horizontal range of the projectile is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 29

The time of flight of a projectile is

10 s

and range is

500 m .

Maximum height attained by it is-[

g = 10 m s^{- 2}

]

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 30

An arrow is shot in air, its time of flight is

5 \sec

and horizontal range is

200 m .

The inclination of the arrow with the horizontal is (Take

g = 10 m s^{- 2}

)

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 31

A plane flying horizontally at a height of

1500 m

with a velocity of

200 {m s}^{- 1}

passes directly overhead an antiaircraft gun. Then the angle with the horizontal at which the gun should be fired for the shell with a muzzle velocity of

400 m s^{- 1}

to hit the plane, is