Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 50

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A ball is thrown at different angles with the same speed ' $u$ ' from the same point and it has the same range in both cases. If $y_{1}$ and $y_{2}$ be the heights attained in two cases, then $y_{1} + y_{2} =$

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Important Questions on Kinematics

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 51

At what angle with the horizontal should a ball be thrown so that the range

R

is related to the time of flight as

R = 5 T^{2}

?

(Take g = 10 m s^{- 2})

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 52

If the range of a gun which fires a shell with muzzle speed

v,

is

R_{1}

then the angle of elevation of the gun is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 53

The maximum range of a projectile fired with some initial velocity is found to be $1000$ metre. The maximum height $(H)$ reached by this projectile is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 54

The angle which the velocity vector of a projectile, thrown with a velocity

v

at an angle

θ

to the horizontal, will make with the horizontal, after time

t

of it being thrown up, is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 55

The vertical height of the projectile at time

t

is given by

y = 4 t - t^{2}

and the horizontal distance covered is given by

x = 3 t .

What is the angle of projection with the horizontal?

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 56

A bomb is fired from a cannon with a velocity of

1000 m / s

making an angle of

30 °

with the horizontal:
What is the time taken by the bomb to reach the highest point-

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 57

For a projectile the ratio of maximum height reached to the square of flight time is

(g = 10 m s^{- 2})

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 58

If a projectile is thrown such that range

R

is four times the height

h

attained then the angle of projection is-