The point from where a ball is projected is taken as the origin of the coordinate axes. The x and y components of its displacement are given by `x=6t and y=7t-5t^(2)`. What is the velocity of projection?

Options

A. `6ms^(-1)`
B. `8ms^(-1)`
C. `10ms^(-1)`
D. `14ms^(-1)`

Answer

C