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A projectile is fired at an angle of $45 °$ with the horizontal. The elevation angle of the projectile at its highest point as seen from the point of projection is:

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Important Questions on Kinematics

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 18

The motion of a particle along a straight line is described by the equation

x = 8 + 12 t - t^{3}

, where

x

is in

metres

and

t

seconds

. The retardation of the particle when its velocity becomes zero is:

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 19

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

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 20

A particle has initial velocity

(2 \hat{i} + 3 \hat{j})

and acceleration

(0.3 \hat{i} + 0.2 \hat{j})

. The magnitude of velocity after

10 seconds

will be

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 21

A stone is dropped from a height

h

. It hits the ground with a certain momentum

P

. If the same stone is dropped from a height

100 %

more than the previous height, the momentum when it hits the ground will change by

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 22

A stone falls freely under gravity. It covers distances

h_{1}

h_{2}

and

h_{3}

in the first

5 seconds

, the next

5 seconds

and the next

5 seconds

, respectively. The relation between

h_{1}

h_{2}

and

h_{3}

is:

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 23

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

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Analytical Questions)>Q 24

A projectile is projected from the ground with initial velocity

\vec{u} = u_{0} \hat{i} + v_{0} \hat{j}

. If the acceleration due to gravity

(g)

is along negative

y -

direction, then find the maximum displacement in

x -

direction.

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Assertion & Reason)>Q 1

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

5 m s^{- 1}

and angle

θ

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

3 m s^{- 1}

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

m s^{- 2}

) given

g = 9.8 m s^{- 2}

A projectile is fired at an angle of 45° with the horizontal. The elevation angle of the projectile at its highest point as seen from the point of projection is:

Important Questions on Kinematics

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A projectile is fired at an angle of $45 °$ with the horizontal. The elevation angle of the projectile at its highest point as seen from the point of projection is: