(1} Consider a projectile motion in Figure 1. If the projectile is launched at t = l} and hits the ground at t = tf [we will call cf travel time of the projectile}, please show that vsinB + vsinB 2+2 h tr: :1 o '1'; o) .9" (6} (Hint: What is the 3? position at If? Does it make Eq. (5} solvable for t] (2} In Part I of this lab, we will study a horizontal launch, which is the case in Figure 1 having 30 = ll}. Please show that the horizontal travel distance x is Ax = on E. (7} (Hint: What is the horizontal speed from Eq. [4} and the travel time from Eq. [6}? How can the two quantities tell you about x?) Note: In the experiment: you will measure x and it, and use Eq. (3') to compute the launch speed as on = Axgfh}. (3} In Part II of this lab, we will study an angled launch with the launch point and the target at the same level; which is the case in Figure 1 having II)"