Lesson: Chapter 12 — Equilibrium of Forces

12.4. Equilibrium under three non-parallel forces 2 of 8 Reset answers

Clear all your answers?

This erases every answer in this set and starts you again at question one. Your score will be gone.

Type these four numbers to confirm:

Those numbers don't match. Look at them again and type them.

Yes, clear Keep them

Question 2

In activity 4, what is observed about the three vertical lines marked when the lamina is hung from three different points?

A They never meet B They meet at a single point C They meet at a corner of the lamina D They are parallel to one another

The right answer is the one marked above.

They meet at a single point. That point is the centre of gravity of the lamina.

Two lines are enough to locate the centre of gravity — the third is marked as a check.

Answer the question to continue.