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Class 11
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Physics
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Motion in a Straight Line
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Distance and Displacement
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Coordinate System and Position Vector
Coordinate System and Position Vector
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Frame of Reference
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Important Questions
A farmer moves along the boundary of a square field of side
1
0
m in
4
0
sec What will be magnitude of displacement of the farmer at the end of
2
minutes
2
0
seconds from his initial position?
Medium
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>
An athlete completes one round of a circular track of diameter 200 m in 40 s. If he continues to run, what will be the distance covered and the displacement
respectively,
at the end of 2 minutes 20 s?
Medium
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>
A person moves
3
0
m
North and then
2
0
m
towards East and finally
3
0
2
m in South-West direction. The displacement of the person from the origin will be
Medium
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>
A particle moves along a straight line OX. At a time t(in seconds) the distance x(in meters)of the particle from 0 is given by:-
x
=
4
0
+
1
2
t
−
t
3
. How long would the particles travel before coming to rest?
Medium
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>
Two positive ions
,
each carrying a charge
q
,
are separated by a distance
d
.
If
F
is the force of repulsion between the ions
,
then the number of electrons missing from each ion will be (e being the charge on an electron)
:
−
Medium
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>
Distinguish between
Distance and displacement.
Easy
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>
The displacement of a particle is given by
x
=
(
t
−
2
)
2
where x is in metres and t is in seconds. The distance covered by the particle in first 4 seconds is
Medium
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>
The numerical ratio of displacement to distance for a moving object is
Medium
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>
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Medium
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>
A body travels a distance of
3
k
m
towards East, then
4
k
m
towards North and finally
9
k
m
towards East.
(i) What is the total distance travelled?
(ii) What is the resultant displacement?
Easy
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>