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Motion In Two And Three Dimensions
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With what minimum speed must a particle be projected from origin so that it is able to pass through a given point
(30m, 40m)
40 m/s
30 m/s
60 m/s
50 m/s
A hunter takes an aim at a monkey sitting on a tree and fires abullet.
Just when the bullet leaves the barrel of the gun, it so happens that the monkey begins to fallfreely.
The bullet will
may or may not hit the monkey. It will depend upon the velocity of the bullet
go above the monkey
go below the monkey
hit the monkey
If air resistance and air buoyancy are to be ignored, then which of the following factors determines the time of flight of the projectile
vertical component of initial velocity
horizontal component of initial velocity
horizontal component of acceleration.
initial velocity
Two stones are thrown up simultaneously from the edge of a cliff with initial speeds v and 2
v. The relative position of the second stone with respect to first varies with time till both the stones strike the ground as
linearly
first parabolically then linearly
first linearly then parabolically
parabolically
If the velocity of projection of a projectile is trebled then its maximum range will be
quadrupled
six times
nine times
eight times
A man can thrown a stone 100 maway.
The maximum height to which he can throw vertically is
200 m
25 m
50 m
100 m
A particle is projected from horizontal making an angle 60 degree with initial velocity 40 m/s. The time taken by the particle to make angle 45 degree from horizontal, is
20 s
15 s
2.0 s
1.5 s
At the top of the trajectory of a projectile, the directions of its velocity and acceleration are
antiparallel to each other
inclined to each other at an angle of 45 degree
parallel to each other
perpendicular to each other
If a number of particles are projected from the same point in the same plane so as to describe equal parabolas, then the vertices of their path lie on a
parabola
Rectangle
Circle
Square
If the height attained by a projectile is the greatest, then which of the following is the maximum
Time of flight
force of gravity
Horizontal range
Angle of projection with the vertical
An object is dropped through the window of a fast runningtrain.
Then
to a man standing near the track, path of object will appear to be part of parabola
the object follows an elliptical path
the object falls down vertically
the object moves straight horizontally
A body is projected with velocity u at projection angle ? has horizontal displacement R. For the same velocity and projection angle, its range on the moon�s surface will be
R/16
36R
R/36
6R
An aeroplane flying horizontally with speed 90 km/h releases a bomb at a height of 78.4 m from the ground, when will the bomb strike the ground
6 s
8 s
10 s
4 s
A ball is thrown at an angle ? with thehorizontal.
Its horizontal range is equal to its maximumheight.
This is possible when tan ? = �
2
4
0.5
1
Two bullets are fired horizontally with different velocities from the sameheight.
Which will reach the ground first
Slower one
It cannot be predicted
Both will reach simultaneously
Faster one
A bullet is fired horizontally with a velocity of 200 m/s. If acceleration due to gravity is 10 m/second square, in first second it will fall through a height of
10m
5m
200m
20m
Which of the following is the largest, when the height attained by the projectile is the greatest
Time of flight
Angle of projectile with the vertical
None of the above
Range
A passenger traveling in a train moving with constant velocity drops a stone from thewindow.
To the passenger the path of projectile will appear to be
elliptical
arc of a circle
parabola
Straight line
A bullet fired from gun at sea level rises to a maximum height10m.
When fired at a ship 40 m away, the muzzle velocity should be
16 m/s
NONE OF THESE
20 m/s
15 m/s
Which of the following does not affect the maximum height attained by the projectile
Angle of projection
Acceleration of the projectile
Magnitude of initial velocity
Mass of the projectile
1
2
3
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Related Topics
Motion In Two And Three Dimensions
Motion in two and three dimensions
Three
Simple Harmonic Motion and Waves
Centre of mass and rotational motion.
Laws Of Motion
Description Of Motion In One Dimension
Circular Motion Centre Of Mass
Fluids In Motion
Motion in one dimension
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