subject
Physics, 27.03.2020 00:27 brainbean

An elevator is on the 20th floor of a 40-floor building. At time t = 0, the elevator is at rest and the doors have just finished closing. A student on the elevator has a smartphone with an app that can measure vertical acceleration. The student takes data for the 10 seconds starting at time t = 0; the acceleration data is shown in the graph on the right. Let positive values represent upward acceleration.

(a) Qualitatively and quantitatively describe the motion of the elevator at the following times.
i. Time t = 5 seconds
ii. Time t = 10 seconds
(b) At time t = 10 seconds, is the elevator above, below, or at its initial position? Explain your reasoning.
(c) On the grids below, draw graphs representing the velocity v and height y of the elevator as functions of time during the 10-second interval. Assume that the initial height of the elevator is y = y0. Be sure that your graphs have proper shapes and slopes during the appropriate times.

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 18:00, Pumpkinputters
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
image
Physics, 21.06.2019 19:30, ggdvj9gggsc
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
image
Physics, 21.06.2019 20:00, jonathanvega424
What statements accurately describe atoms
Answers: 1
image
Physics, 22.06.2019 11:00, sydneyclack
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
Answers: 1
You know the right answer?
An elevator is on the 20th floor of a 40-floor building. At time t = 0, the elevator is at rest and...

Questions in other subjects:

Konu
Mathematics, 06.02.2021 04:20
Konu
History, 06.02.2021 04:20
Konu
Computers and Technology, 06.02.2021 04:20
Konu
History, 06.02.2021 04:20
Konu
Mathematics, 06.02.2021 04:20