Physics-
A body is at rest at
. At
, it starts moving in the positive
-direction with a constant acceleration. At the same instant another body passes through
moving in the positive
-direction with a constant speed. The position of the first body is given by
after time ‘
’ and that of the second body by
after the same time interval. Which of the following graphs correctly describes
as a function of time ‘
’
Physics-General
Answer:The correct answer is: 
and 
.This equation is of parabola
and 
As
graph shows possess minima at 
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General solution of is
General solution of is
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A particle starts from rest at
and undergoes an acceleration
in
with time
in second which is as shownWhich one of the following plot represents velocity
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A particle starts from rest at 
The equation of motion

The velocity for next 2 s




Hence,
graph will be as shown.

The equation of motion
The velocity for next 2 s

Hence,

A particle starts from rest at
and undergoes an acceleration
in
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physics-General
A particle starts from rest at 
The equation of motion

The velocity for next 2 s




Hence,
graph will be as shown.

The equation of motion
The velocity for next 2 s

Hence,

physics-
For the velocity-time graph shown in figure below the distance covered by the body in last two seconds of its motion is what fraction of the total distance covered by it in all the seven seconds

For the velocity-time graph shown in figure below the distance covered by the body in last two seconds of its motion is what fraction of the total distance covered by it in all the seven seconds

physics-General
physics-
The
graph shown in the figure represents

Up to time
slope of the graph is constant and after
slope is zero
the body travel with constant speed up to time
and then stops
The
graph shown in the figure represents

physics-General
Up to time
slope of the graph is constant and after
slope is zero
the body travel with constant speed up to time
and then stops
physics-
In the following graph, distance travelled by the body in metres is

Distance = Area covered between velocity and time axis

In the following graph, distance travelled by the body in metres is

physics-General
Distance = Area covered between velocity and time axis

maths-
If
then
=
If
then
=
maths-General
physics-
Velocity-time
graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation is

Between time interval 20s the 4s, there is non-zero acceleration and retardation. Hence, distance travelled during this interval = Area between time interval 20 s to 40 s

Velocity-time
graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation is

physics-General
Between time interval 20s the 4s, there is non-zero acceleration and retardation. Hence, distance travelled during this interval = Area between time interval 20 s to 40 s

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The value of k such that
lies in the plane 2x-4y+z+7=0 is
The value of k such that
lies in the plane 2x-4y+z+7=0 is
maths-General
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is (units)
The distance between the line
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The area bounded by
X- axis, x=1 and x=2 is
The area bounded by
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The area bounded by y=3x and
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The area bounded by y=3x and
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The number of solutions of the equation
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physics-
The displacement-time graph of a moving object is shown in figure. Which of the velocity-time graphs shown in figure could represent the motion of the same body?

Think of the lope of the given displacement-time graph at different points and you would arrive at the correct answer.
Alternatively, look at the self-illustrative figure.

Alternatively, look at the self-illustrative figure.

The displacement-time graph of a moving object is shown in figure. Which of the velocity-time graphs shown in figure could represent the motion of the same body?

physics-General
Think of the lope of the given displacement-time graph at different points and you would arrive at the correct answer.
Alternatively, look at the self-illustrative figure.

Alternatively, look at the self-illustrative figure.

physics-
A particle shows distance-time curve as given in this figure. The maximum instantaneous velocity of the particle is around the point

Instantaneous velocity is given by the slope of the curve at that instant
from the figure it is clear that slope of the curve is maximum at point ‘
’
A particle shows distance-time curve as given in this figure. The maximum instantaneous velocity of the particle is around the point

physics-General
Instantaneous velocity is given by the slope of the curve at that instant
from the figure it is clear that slope of the curve is maximum at point ‘
’
maths-
The value of k for which the lines
and
are perpendicular is
The value of k for which the lines
and
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maths-General