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Class 11
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Physics
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Motion in a Straight Line
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Acceleration
Acceleration
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Advanced Knowledge of Distance/Displacement - Time Graph
Example
Definitions
Formulaes
Advanced Knowledge of Velocity - Time Graph
Example
Definitions
Formulaes
Average and Instantaneous Acceleration
Example
Definitions
Formulaes
Advanced Knowledge of Acceleration
Example
Definitions
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Average and Instantaneous Acceleration - Problem L1
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Instantaneous Acceleration and Average Acceleration
5 mins
Problem on Average and Instantaneous Acceleration
8 mins
Acceleration
18 mins
Problems on Average and Instantaneous Acceleration
6 mins
Displacement - Time Graph
11 mins
Velocity - Time Graph - I
10 mins
Velocity - Time Graph - II
11 mins
Quick Summary With Stories
Acceleration
2 mins read
Motion in Plane with Constant Acceleration
2 mins read
Displacement-Time Graph
3 mins read
Equation For Position-Time Relation
2 mins read
Velocity-Time Graph
3 mins read
Acceleration From Velocity-Time Graph
3 mins read
Important Questions
A particle moves along a straight line such that its displacement at any time
$t$
is given by
$s=t_{3}−6t_{2}+3t+4$
metres. The velocity when the acceleration is zero is:-
Medium
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>
The position x of a particle with respect to time t along x-axis is given by
$x=9t_{2}−t_{3}$
where x is in metres and t is in seconds. What will be the position of this particle when it achieves maximum speed along the + x direction?
Medium
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>
The relation between time t and distance x is
$t=ax_{2}+bx$
where a and b are constants.The acceleration is
Easy
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>
The position
$x$
of a particle varies with time as
$x=at_{2}−bt_{3}$
. The acceleration of particle is zero at time
$T$
equal to
Medium
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>
The position of a particle is given by
$r=3.0ti^−2.0t_{2}j^ +4.0k^m$
where t is in seconds and the coefficients have the proper units for
$r$
to be in metres(a) Find the
$v$
and
$a$
of the particle?
(b) What is the magnitude and direction of velocity of the particle at t = 2.0 s ?
Medium
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>
The elevator shown in figure is descending, with an acceleration of 2
$m/s_{2}$
. The mass of the block A is 0.5 kg. The force exerted by the block A on the block B is -
Medium
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>
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
Medium
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>
The acceleration of a particle is increasing linearly with time
$t$
as
$bt$
. The particle starts from the origin with an initial velocity
$v_{0}$
. The distance travelled by the particle in time
$t$
will be
Medium
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>
A point
$P$
moves in counter-clockwise direction on a circular path as shown in the figure. The movement of
$_{′}P_{′}$
is such that it sweeps out a length
$s=t_{3}+5$
, where
$s$
is in metres and
$t$
is in seconds. The radius of the path is
$20m$
. The acceleration of
$_{′}P_{′}$
when
$t=2s$
is nearly.
Medium
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>
Fig shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions:
$(a)$
Which of the three is travelling the fastest?
$(b)$
Are all three ever at the same point on the road?
$(c)$
How far has C travelled when B passes A?
$(d)$
How far has B travelled by the time it passes C?
Medium
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>