Question

A helicopter ascending at a rate of 12 m/s . At a height of 80 m above the ground a package is dropped . How long does the package take to reach the ground ?

Answer 1

Solution

Answer 2

Is there a formula that goes with this question?

Answer 3

just the normal one. A projectile shot from a height h with initial velocity v has height
h(t) = h + vt - 4.9t^2
Now just solve for t when h=0.
I get 5.45 seconds

Answer 4

Step 1: use second equation of motion.
Step 2: use quadratic equation.