sec" t i +-- dt 6Given the position function u)-(43 cos, 3sint), find the velocity, speed and acceleration. A projectile is fired from ground level at an angle of 10° with the horizontal. Find the minimum initial velocity necessary if the projectile is to have a range of 100 feet. 8 Find the maximum height and range of a projectile fired at a height of 3 feet above the ground with an initial velocity 900 feet per second and at an angle of 45° above the horizon. 9yfind the unit tangent vector T0) and the set of parametric equations for the line tangent to the curve )-(2cost,2sint.) at the point(2,0,0). )-(1,12,'2), find Tto. N(t), a,, aN at t = 1. iven
