If a slug has a weight of 2 tons and is 70 ft long, what does it weigh in newtons?

Question

This is a physics question. My main question is...does length have anything to do with newtons?

I know the answer, but I do not know how they got it.
It is 2 tons with each ton being 2000lbs.

-Dorath

Answer 1

Nope. The length of a slug doesn't matter.

The slug's altitude matters, however. If the slug were in an airplane, it would weigh considerably less than if it were at the bottom of an ocean.

This is because g is about 9.8 m/s/s when you're close to the earth's surface. It varies just a tiny bit as you get farther and farther away from the earth!

This is just a simple conversion.

We know the following.

1 T = 2000 lb

1 lb = 4.445 N

So 2 T = 4000 lb = 17780 N

To go from Ton to lb, multiply by 2000.
To go from lb to N, multiply by 4.445

Keeping with the significant digits, we'd say about 20,000 N.

Answer 2

No, length has nothing to do with force. It's still
F = ma (with force F in Newtons, mass m in kilograms, and acceleration a in m/s²)

But, in your problem, is that 2 in English tons or metric tonnes?

Doug