A ball is thrown from the top of tower with an initial velocity of `10ms^(-1)` at an angle of `30^(@)` with the horizontal. If it hits the ground of a distance of 17.3m from the back of the tower, the height of the tower is `(Take g=10ms^(-2))`

Options

A. `5m`
B. `20m`
C. `15m`
D. `10m`

Answer

D