Some ranchers graze their cattle on public lands. What is the most likely reason that some people protest this action (2 points) Cattle grazing on the land only benefits the ranchers, but the disadvantages are shared by all who use the lands. Livestock grazing is prohibited on all public lands. Most cattle ranchers do not pay appropriate fees for using public lands to graze their cattle. Cattle ranchers profit from using public lands, but they do not donate that profit to others who are in need. Many ranchers make modifications to the public lands to make them more appropriate for grazing.

the velocity you are looking for is made up of two parts: horizontally velocity, vh, and its vertical velocity, vv. the actual velocity of the ball will be these two parts added together, and because velocity is a vector then they will need to be added vectorially.  

neglecting air resistance etc etc.,  

the horizontal velocity component will be constant (because there is no accelerating force in the horizontal direction.  

vh = 8 ms-1  

the vertical velocity component has an accelerating force: 'g'.  

using v = u +at where a = g = 9.81 ms-2.  

the vertical component of velocity, vv = 0 + gt = vv =9.81 x 2  

vv = 19.62 ms-1 . the zero appears because the virtical component of velocity at time t=0 is zero. remember, the ball was thrown horizontally.  

how fast it will be moving (it actual path (being a parabola )) will be the vector sum of these two.  

adding vectorally gives: -  

v = sqr root (8^2 + 19.62^2) = sqr root(64+384.9) = 21.18 or 21.2 ms-1

your answer is c! hope this : )