Two balls are thrown from an inclined plane at angle of projection with the plane, one up the incline and the other down the incline as shown. Which one is not correct?

Options

A. `h_(1)-h_(2)=(v_(0)^(2)sin^(2)alpha)/(2g cos theta)`
B. `T_(1)=T_(2)=(2v_(0) sin alpha)/(g cos theta)`
C. `R_(2)gtR_(1)`
D. `v_(t_(1))=v_(t_(2))`

Explanation

`R_(1)=V_(0) cos alpha T_(1)-(1)/(2) (g sin theta)T_(1)^(2)`
`R_(2)=V_(0) cos alphaT_(2)+(1)/(2)(g sin theta)T_(2)^(2)`
`T_(1)=T_(2)R_(1)cancel=R_(2)`