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

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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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Important Questions on Kinematics

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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-

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 59

The range of projectile is

50 m

when

θ

is inclined with horizontal at

15 ° .

What is the range when

θ

becomes

45 ° -

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 60

A particle moves in the

x y

plane with only an

x

-component of acceleration of

2 m s^{- 2} .

The particle starts from the origin at

t = 0

with an initial velocity having an

x

-component of

8 m s^{- 1}

and

y

-component of

- 15

{ms}^{- 1} .

Velocity of particle after time

t

is:

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 61

A ball is projected from a certain point on the surface of a planet, at a certain angle with the horizontal surface. The horizontal and vertical displacement

x

(in meter) and

y

(in meter), respectively, vary with time

t

(in seconds) as

x = 10 \sqrt{3} t, y = 10 t - t^{2}

. The maximum height attained by the ball is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 62

The horizontal and verticle distances travelled by a particle in time

t

are given by

x = 6 t

and

y = 8 t - 5 t^{2} .

If

g = 10 m / \sec^{2} .

then the initial velocity of the particle is-

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 63

In the above question the angle with the horizontal at which the projectile is projected is :

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 64

What is the value of acceleration due to gravity for the case described in above question