Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 15

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A particle is moving along a straight line whose velocity displacement curve is as shown in figure.

What will be the acceleration of particle when its displacement is $3 m ?$

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Important Questions on Kinematics

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 16

If a particle's position is given by

x = 4 - 12 t + 3 t^{2}

where

t

is in the seconds and

x

in meters. What is its velocity at

t = 1 s

? Whether the particle is moving in positive

x

direction or negative

x

direction?

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 17

A particle is moving in a straight line with initial velocity

u

and uniform acceleration

f

. If the sum of the distances travelled in

t^{th}

and

{(t + 1)}^{th}

seconds is

100 cm

, then its velocity after

t

seconds in

cm s^{- 1}

is,

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 18

The displacement time graph of a moving particle is shown below.

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The instantaneous velocity of the particle is negative at the point

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 19

All the graphs below are intended to represent the same motion. One of them does it incorrectly. Pick it up.

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 20

An object at rest at the origin begins to move in the

+ x

direction with a uniform acceleration of

1 m s^{- 2}

for

4 s

and then it continues moving with a uniform velocity of

4 m s^{- 1}

in the same direction. The

x - t

graph for the object's motion will be

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 21

The velocity $(V)$ -time $(t)$ graph for the linear motion of an object is shown in the figure. The displacement and distance after $8 s$ , respectively are

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 22

The velocity-time graph of a body moving in a straight line is shown in figure. Find the displacement and distance travelled by the body in $10$ seconds.

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Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 24

A ball is dropped vertically from a height

d

above the ground. It hits the ground and bounces up vertically to a height

\frac{d}{2}

Neglecting subsequent motion and air resistance, its velocity

v

varies with the height

h

above the ground as