# Physics 2

posted by .

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 11s. relative to escalator, what speed must the student exceed in order to beat the record?

• Physics 2 -

(speed-1.8)time=distance
solve for speed.

• Physics 2 -

is this correct?:

speed(time)=distance

speed=dist/time

• Physics 2 -

Of course not. I gave you the answer above.
speed-1.8 = distance/time

• Physics 2 -

that not the answer i have in my book. the answer i have is 4.5m/s.

• Physics 2 -

You need to get a basic math tutor immediately, or drop physics. The language of physics is math, and you are operating at an algebra I level, at best. You will not succeed.

speed-1.8=30/11
speed= 30/11 + 1.8= 4.5m/s

Physics comprehension will demand much higher levels of math skills than this.

Good luck.

• Physics 2 -

Hi , I know how you did all the mathematically calculations but I was just wondering how u came up with the eqauation that you did.

## Similar Questions

1. ### geometry

an escalator in the subway system of St. Petersburg, Russia, has a vertical rise of 195 ft 9.5 inch, and rises at an angle of 10.4 degrees. How long is the escalator?
2. ### physics

Topic: Relative Velocity Question: The escalator that leads down into a subway station has a length of 30.0 m and a speed of 1.8 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on …
3. ### college physics

Topic: Relative Velocity Question: The escalator that leads down into a subway station has a length of 30.0 m and a speed of 1.8 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on …
4. ### Physics

The escalator that leads down into a subway station has a length of 28.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record …
5. ### physics

The escalator that leads down into a subway station has a length of 29.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record …
6. ### 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 …
7. ### 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 2.determine …
8. ### 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 take …
9. ### Physics

escalator that leads down into a subway station has a length of 27.0 m and a speed of 1.7 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time …
10. ### English

Thank you for your help. Here goes some more questions related to 'subway' 1. You should be quiet in the subway. 2. You should be quiet on the subway. 3. You should be quiet on the train. ------------------ #1 means: You should be …

More Similar Questions