A projectile is fired vertically upward intothe air; its position (in feet) above the ground after t seconds is givenby the function s(t). For the following functions, use limits to determinethe instantaneous velocity of the projectile at t = a seconds for thegiven value of a s(t)= -16t2 + 128t + 192; a = 2

A projectile is fired vertically upward intothe air; its position (in feet) above the ground after t seconds is givenby the function s(t). For the following functions, use limits to determinethe instantaneous velocity of the projectile at t = a seconds for thegiven value of a s(t)= -16t2 + 128t + 192; a = 2