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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)
50 m/s
60 m/s
30 m/s
40 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
horizontal component of initial velocity
vertical 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
first linearly then parabolically
linearly
parabolically
first parabolically then linearly
If the velocity of projection of a projectile is trebled then its maximum range will be
nine times
eight times
six times
quadrupled
A man can thrown a stone 100 maway.
The maximum height to which he can throw vertically is
50 m
25 m
100 m
200 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
2.0 s
15 s
1.5 s
20 s
At the top of the trajectory of a projectile, the directions of its velocity and acceleration are
parallel to each other
perpendicular to each other
inclined to each other at an angle of 45 degree
antiparallel 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
Square
Circle
If the height attained by a projectile is the greatest, then which of the following is the maximum
Time of flight
Horizontal range
Angle of projection with the vertical
force of gravity
An object is dropped through the window of a fast runningtrain.
Then
the object follows an elliptical path
the object moves straight horizontally
to a man standing near the track, path of object will appear to be part of parabola
the object falls down vertically
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
6R
R/36
36R
R/16
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
8 s
6 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 ? = �
1
2
0.5
4
Two bullets are fired horizontally with different velocities from the sameheight.
Which will reach the ground first
It cannot be predicted
Both will reach simultaneously
Faster one
Slower 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
20m
5m
10m
200m
Which of the following is the largest, when the height attained by the projectile is the greatest
Range
Angle of projectile with the vertical
None of the above
Time of flight
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
arc of a circle
elliptical
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
NONE OF THESE
16 m/s
15 m/s
20 m/s
Which of the following does not affect the maximum height attained by the projectile
Mass of the projectile
Acceleration of the projectile
Magnitude of initial velocity
Angle of projection
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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