A heavy particle is projected with a velocity at an acure angle with the horizontal into a uniform gravitational field. The slope of the trajectory of the particle varies as

Options

A.
B.
C.
D.

Explanation

`y=x tan theta-(gx^(2))/(2u^(2)cos^(2)theta)`
`rArr(dy)/(dx)=tan theta-((g)/(u^(2)cos^(2)theta))x`
Putting x=`u costheta.t`
`rArr(dy)/(dx)=tan theta-((g)/(u cos theta))t`
`rArreq^(n)` of straght line with negative slope and +ve intercept.