Ankur Sir Live Session - 13 Aug 2020Contact Number: 9667591930 / 8527521718Ankur Sir Live Session - 13 Aug 2020Contact Number: 9667591930 / 8527521718If horizontal range of a projectile is 4 times its maximum height. Its range of projection will be
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A stone is pfojected with a velocity v at an angle with the horizontal reaches maximum height H1. When it is projected with u at an angle with the horizontal, it reaches maximum height H2. The ratio between hrizontal range R of the projection, H1 and H2 is ?
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The velocity of a projectile at the initial point A is m/s. Its velocity in m/s at point B is
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A body is projected with initial kinetic energy of 100 J and at an angle of with the horizontal. The K.E. of the body at highest point will be
1. 25 J
2. 50 J
3. 75 J
4. 0 J
The equation of trajectory of a projectile given angular projection is y = ax - bx2, then horizontal range of projectile is
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A large number of bullets are fired in all directions with same velocity u. What is the maximum area on the ground on which these bullets can spread ?
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A particle is thown with a speed u at an angle with the horizontal. When the particle makes an angle with the horizontal, its speed changes to v, Which is equal to
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A smooth square platform ABCD is moving towards right with uniform speed u. At what angle must a particle be projected from A with speed v, so that it strikes the point D ?
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Time taken by the projectile to reach from P to Q is t, then PQ ?
1. 2ut
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A aeroplane moving with a speed of 250m/s is at a height of 6000 m just overhead of an ant, aircraft gun. Muzzle speed of shell is 500m/s, the firing angle should be ?
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4. None
The height y and the distance x along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by and x = 6t m, where t is in seconds. The velocity with which the particle is projected is.
1. 14 m/s
2. 10 m/s
3. 8 m/s
4. 6 m/s
A particle of mass m is projectile with a velocity v making an angle of with the horizontal. The magnitude of angular momentum of the projectile about the point of the projection when particle is at it's maximum height h is
if a person can through a stone to maximum height of h meter vertically, then maximum distance through which it can be thrown horizontally by the same person is
1. h/2
2. h
3. 2h
4. 3h
At the top of the trajectory of a projectile, direction of its velocity and acceleration are
1. perpendicular to each other
2. parallel to each other
3. inclined to each other at angle of
4. antiparallel to each other
At the height 80 m an aeroplane is moving with 150m/s. A bomb is dropped from it, so as to hit a target. At what distance from the target should bomb be dropped ?
1. 605.3 m
2. 600 m
3. 80 m
4. 230 m
Three balls are dropped from the top of a building with equal speed at different angles. When the balls strike ground, their velocities are respectively , than
An object of mass 2m is projected with a speed of 100 m/s at an angle to the horizontal. At the highest point, the object breaks into pieces of same mass m & the first one comes to rest . The distance between point of landing of the bigger piece is (given g = 10 m/s2 )
1. 3840 m
2. 1280 m
3. 1440 m
4. 960 m
A cart is moving horizontally along a straight line with contant speed of 30 m/s. A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved 80 m. At what speed (relative to the cart) must the projectile be fired ? (given g = 10 m/s2)
1. 10 m/s
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4. None of the above
A cart is moving with speed of 20m/s on a horizontal track. A body is projected with speed 40m/s (relative to cart ) from the cart in such a way that path of body appear to be straight line for an observer on ground. Time for which body remains in air is:
A body is projected with speed u at an angle with the horizontal after what time it will start moving perpendicular to its initial direction of projection.
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