Math Is Fun Forum

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Effect of Elevation on Weight

If an object weighs m pounds at sea level, then it's weight W (in pounds) at a height of h miles above sea level is given approximately by

W(h) = m[4000/(4000 + h)]^2

If Amy Weighs 120 pounds at sea level, how much will she weigh on Pike's Peak, which I'd 14,110 feet above sea level?

Bob

Administrator

Registered: 2010-06-20

Posts: 10,619

Re: Effect of Elevation on Weight

You're not told m but there's a way to calculate it.  Put in h = o (for sea level) and you can find m.

Then you can put h = 14110 . but convert feet to miles first.

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

amnkb

Member

Registered: 2023-09-19

Posts: 253

Re: Effect of Elevation on Weight

If an object weighs m pounds at sea level, then it's weight W (in pounds) at a height of h miles above sea level is given approximately by W(h) = m[4000/(4000 + h)]^2. If Amy Weighs 120 pounds at sea level, how much will she weigh on Pike's Peak, which is 14,110 feet above sea level?

(dont round until the end!)

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Effect of Elevation on Weight

You're not told m but there's a way to calculate it.  Put in h = o (for sea level) and you can find m.

Then you can put h = 14110 . but convert feet to miles first.

Bob

Perfect. Copy. Thanks again. Do you have an email address? I need your advice about a new job that I am set to start on March 25. I don't know if I can physically do the job at 58 soon to be 59.

mathxyz

Member

From: Brooklyn, NY

Registered: 2024-02-24

Posts: 1,053

Re: Effect of Elevation on Weight

You're not told m but there's a way to calculate it.  Put in h = o (for sea level) and you can find m.

Then you can put h = 14110 . but convert feet to miles first.

Bob

Perfect. Copy. Thanks again. Do you have an email address? I need your advice about a new job that I am set to start on March 25. I don't know if I can physically do the job at 58 soon to be 59.