Problem 3: A projectile is launched from ground level at an angle of 30 degrees above the horizontal. Neglect air resistance and consider the motion from just after the moment it is launched to just before the moment it lands on the ground. R Part (a) When is the projectile's velocity equal to zero? MultipleChoice : 1) Halfway to the highest point. 2) Just after launch. (3) Halfway back down to the ground. (4) The projectile's velocity is never zero. 5) At the highest point. 6) Just before landing on the ground. Part (b) When does the projectile have the smallest speed? MultipleChoice : 1) Halfway to the highest point. 2) Just after launch. 3) Halfway back down to the ground. (4) The projectile's speed is constant. At the highest point. 6) Just before landing on the ground. Part (c) When does the projectile's speed equal its launch speed? Multiple Choice