A rectangular billiard table has vertices at and . a small billiard ball starts at and moves in a straight line to the top of the table, bounces to the right side of the table, then comes to rest at . The -coordinate of the point where it hits the right side, is |
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a) |
3.7 |
b) |
3.8 |
c) |
3.9 |
d) |
4 |

A rectangular billiard table has vertices at and . a small billiard ball starts at and moves in a straight line to the top of the table, bounces to the right side of the table, then comes to rest at . The -coordinate of the point where it hits the right side, is |
|||||||

a) |
3.7 |
b) |
3.8 |
c) |
3.9 |
d) |
4 |

1 Answer

127 votes

**(a)**

Also

Hence,

From 1st two relations

(i)

From last two

or (2)

Hence, from (i) and (ii)

127 votes

127