@Abhisar A marble trackway is built in the shape of a half circle of radius 3.00 m. The half circle is oriented so that its two ends are at equal height above the midpoint of the trackway, which touches the floor.

The marble is released from rest at one end of the trackway. It approaches but does not reach the other end of the trackway, stopping momentarily at height 2.88 m above the floor before reversing direction. With each roll of the marble from one side of the half-circle to the other side, what percentage of its mechanical energy does it lose?

Question

@Abhisar A marble trackway is built in the shape of a half circle of radius 3.00 m. The half circle is oriented so that its two ends are at equal height above the midpoint of the trackway, which touches the floor. 

The marble is released from rest at one end of the trackway. It approaches but does not reach the other end of the trackway, stopping momentarily at height 2.88 m above the floor before reversing direction. With each roll of the marble from one side of the half-circle to the other side, what percentage of its mechanical energy does it lose?

abhisar · Answer

Can u draw the diagram ?

akohl · Answer

Would it just b a circle

abhisar · Answer

No it would be a semi-circle or half circle.

akohl · Answer

That's 2.88m above the ground

abhisar · Answer

yes one end (the curved end) and the other end touches the ground.

akohl · Answer

|dw:1405958358782:dw| like this but downward

akohl · Answer

|dw:1405958496722:dw|

abhisar · Answer

actually it is a 3 dimensional figure. I hope u r understanding the actual picture

akohl · Answer

right and the curve is higher up

abhisar · Answer

The curve touches the bottom|dw:1405958719686:dw|