Physics-
General
Easy
Question
A ball of mass
rests on a vertical post of height
. A bullet of mass
, travelling with a velocity
in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of
and the bullet at a distance of
from the foot of the post. The initial velocity
of the bullet is

The correct answer is: 
and 

Applying momentum conservation just before and just after the collision 

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. A bead
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and
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A particle
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with springs constants
representively (see Fig. I) The other ends are attached to identical supports
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A small roller coaster starts at point A with a speed
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physics-General
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A body of mass
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A body of mass
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From an inclined plane two particles are projected with same speed at same angle
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P is a point on the ellipse
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As per given future to complete the circular loop what should be the radius if initial height is 

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Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first

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physics-General
maths-
The area of the region bounded by
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maths-General