posted by Sherry on .
A balloonist, riding in the basket of a hot air balloon that is rising vertically with a constant velocity of 9.5 m/s, releases a sandbag when the balloon is 44.3 m above the ground. Neglecting air resistance, what is the bag's speed when it hits the ground? Assume g = 9.80 m/s2.
Set up the formula,
4.9t^2 +9.5 -44.3 use the quadratic formula to get 2.19 for t.
44.3 = 1/2(9.5 +Vf)2.19
= 30.96 m/s