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 ?

Question

Anonymous · Accepted Answer

Solution

Anonymous · Answer

Is there a formula that goes with this question?

Steve · Answer

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

Niza Nizar · Answer

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