Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 6

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The horizontal range and maximum height of a projectile are equal. The angle of projection of the projectile is___

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Important Questions on Kinematics

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 7

A particle has initial velocity

2 \hat{i} + 3 \hat{j} unit

and acceleration

0.3 \hat{i} + 0.2 \hat{j} unit

The magnitude of velocity after

10 s

will be :

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 8

The velocity of a projectile at the initial point $A$ is $(2 \hat{i} + 3 \hat{j}) m s^{- 1} .$ It's velocity (in $m s^{- 1}$ ) at point $B$ is:

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 9

A projectile is fired from the surface of the earth with a velocity of

5 m s^{- 1}

and angle

θ

with horizontal. Another projectile is fired from another planet with a velocity of

3 m s^{- 1}

at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of acceleration due to gravity on the planet (in

m s^{- 2}

) is (given

g = 9 \cdot 8 m s^{- 2}

)

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 10

A particle starts its motion from rest under the action of a constant force. If the distance covered in first

10 s

is

S_{1}

and that covered in first

20 s

is

S_{2}

then

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 11

A ball is dropped from a high rise platform at

t = 0

starting from rest. After

6

seconds another ball is thrown downwards from the same platform with a speed

v .

The two ball meet at

t = 18 s .

. What is the value of

v ?

[take

g = 10 {ms}^{- 2}

]

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 12

A body is moving with velocity $30 m / s$ towards east. After $10$ seconds its velocity becomes $40 m / s$ towards north. The average acceleration of the body is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 13

A stone falls freely under gravity. It covers distances

h_{1}

,

h_{2}

and

h_{3}

in first

5

seconds, next five seconds and next five seconds respectively. The relation between

h_{1}, h_{2}

and

h_{3}

is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-3>Q 14

A particle is moving such that its position coordinate

(x, y)

are

(2 m, 3 m)

at time

t = 0

(6 m, 7 m)

at time

t = 2 s

and

(13 m, 14 m)

at time

t = 5 s

The average velocity vector

({\vec{V}}_{av})

from

t = 0

to

t = 5 s

is___