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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