If an elevator moves at an acceleration of 5 ft per second squared going up and when the velocity is 8 ft/sec going up, a screw falls from the ceiling of the elevator down to the floor of the elevator. The height of the elevator is 9 ft. Find the length the screw dropped.(adsbygoogle = window.adsbygoogle || []).push({});

My problem:

length= 8t-0.5*(32-4)[tex]t^2[/tex]

but the worked out solution to the problem says that the acceleration is 32 ft/[tex]sec^2[/tex]...

Why is that?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Relative motion question

**Physics Forums | Science Articles, Homework Help, Discussion**