Phyiscs-Energy conservation

An escalator in a shopping centre carries people up through a height h at a vertical speed of
v, but you’re in a hurry when you step onto it, so you climb the moving steps (each with a
height of h
) at a rate of n steps/s. Determine:
4.1 the amount of chemical energy converted into mechanical energy by your leg muscles
during your escalator ride, given that your mass is m;
4.2 the work the escalator motor does on you;
4.3The total amount of work done by your legs and the escalator in getting you to the top.

  1. 👍 0
  2. 👎 0
  3. 👁 268
  1. Are you perhaps trying the find the answer to this week's weekly problem set? I think I need to give you a stern talking to.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. statistics

    The distribution of 27 salaries at a small company has mean $35,000 and standard deviation $2,000. Suppose the company hires a 28th 28th employee at a salary of $120,000. Which of the following claims about the new salary

  2. Physics

    An escalator is 20 m long. If a person stands on the 'up' side, it takes 50 seconds to ride to the top. a) If a person walks up the escalator at a speed of 0.5 m/s relative to the escalator, how long wil it take to get to the top?

  3. College Physics

    an escalator carries you from one level to the next in the airport terminal. the upper level is 4.5 m above the lower level, and the length of the escalator is 7 m. your mass is 60 kg. how much work does the up escalator do on you

  4. physics

    An escalator is 15.0 m long. If a person stands on the escalator, it takes 38.0 s to ride from the bottom to the top. (a) If a person walks up the moving escalator with a speed of 0.500 m/s relative to the escalator, how long does

  1. Physics

    An escalator carries 60 people of average mass 70 kg to a height of 5m in one minute.Find the power needed to do this.

  2. Physics

    Sau-Lan has a mass of 47 kg. She rides the up escalator at Ocean Park in Hong Kong. This is the world's longest escalator, with a length of 227 m and an average inclination of 31°. How much work does the escalator do on Sau-Lan?

  3. Math

    17.Which roller coaster has the greatest lift height Top Thrill Dragster 18.What is the median lift height for the roller coasters lifted? Round to the nearest tenth. Not sure for this one 19.Arrange the given roller coasters from

  4. Physics 2

    the escalator that leads down into a subway station has a length of 30.0m and a speed of 1.8 m/s relative to the ground. student is coming out of subway by running up the wrong direction on escalator. local record time for this is

  1. Math-Sine wave function

    A merry-go-round takes 15 seconds to complete one revolution/spin. Within that time, each horse moves up and down five times. The vertical motion of the horse spans a range of 50 cm, and the horse is 1 m high at its vertically

  2. physics

    In a mall, a shopper rides up an escalator between floors. at the top of the escalator, the shopper turns right and walks 9.00m to store. the magnitude of the shopper's displacement from the bottom of the escalator is 16.0m. the

  3. science

    a person walks up a stationary escalator in t1 second if he remains stationary on the escalator then it can take him up in t2 second if the length of the escalator is L,then 1.determine the speed of man with respect to escalator

  4. Physics

    A person climbs from a Paris metro station to the street level by walking up a stalled escalator in 96.5 s. It takes 60.0 s to ride the same distance when standing on the escalator when it is operating normally. How long would it

You can view more similar questions or ask a new question.