Number of results: 8,428
A 55 kg engineer leaves her office on the 33rd floor of a skyscraper and takes an elevator to the 59th floor. Later she descends to street level. If the engineer takes her office as the zero for potential energy and if the distance from one floor to the next is 3.5 m, what is ...
Friday, May 14, 2010 at 2:59pm by Adam
Have you calculated how long it takes the elevator to free fall 122.5 m? That would be a good way to start. Once you have calculated that time T, the speed required is easy: 1000m/T One of the choices fits perfectly
Thursday, June 10, 2010 at 9:49pm by drwls
I am really not good at physics. How would I go about finding how long it takes the elevator to fall? Is it going to have something to do with 9.8m/s?
Thursday, June 10, 2010 at 9:49pm by brandon
It takes the elevator in a skyscraper 3.6 s to reach its cruising speed of 10 m/s. A 69 kg passenger gets aboard on the ground floor. 1.What is the passenger's weight before the elevator starts moving? 2.What is the passenger's weight while the elevator is speeding up? 3.What ...
Tuesday, September 28, 2010 at 3:34pm by madiha
It takes the elevator in a skyscraper 4.0 to reach its cruising speed of 10 . A 60 passenger gets aboard on the ground floor.What is the passenger's apparent weight while the elevator is speeding up?
Friday, October 22, 2010 at 3:01pm by Luke
A 578 Newton person takes an elevator from the first floor to the second floor of a building. The elevator quickly accelerates at a rate of 1.1 m/s^2 and then moves at a constant speed. Find the passenger's apparent weight during this period of acceleration. (578N)(9.8)=5664....
Sunday, February 5, 2012 at 6:40pm by GRISSELL