Question
A body is projected up a smooth inclined plane with a velocity 
from the point 
as shown in figure. The angle of inclination is 
and top 
of the plane is connected to a well of diameter 40 m. If the body just manages to cross the well, what is the value of ? Length of the inclined plane is 
, and 
The correct answer is:
Let 
be the velocity acquired by the body at which will be moving making an angle with the horizontal direction. As the body just crosses the well so 
or 
or 
Taking motion of the body from to along the inclined plane we have
As 
or 
or 
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and 
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then 
