This links heavily to [[Physics - Force and Newtons]]S .
What is a force diagram??
A diagram showing all the forces acting on an object.
What should you draw whenever you have a problem involving forces in Mechanics??
A force diagram.
What does the force diagram look fora block of weight $W$ being pulled by a force P on a rough horizontal plane??
How would this diagram change if it was a smooth plane??
In $\hat{i}$ and $\hat{j}$ notation, what is the value of a resultant force for an object in equilbrium??
$$ 0\hat{i} + 0\hat{j} $$
2021-02-02
If $$ \left(\begin{matrix} 2+p \ 5+q \end{matrix}\right) $$ is parallel to $$ \left(\begin{matrix} 1 \ -2 \end{matrix}\right) $$, what equation could you write in terms of a new variable $k$ to aid in solving??
$$ \left(\begin{matrix} 2+p \ 5+q \end{matrix}\right) = \left(\begin{matrix} k \ -2k \end{matrix}\right) $$
If $$ \left(\begin{matrix} 2+p \ 5+q \end{matrix}\right) = \left(\begin{matrix} 1k \ -2k \end{matrix}\right)$$ is true, what two equations can you write??
$$ 2+p = k \\ 5+q = -2k $$
$$2+p = k \ 5+q = -2k$$ How could you rewrite this so it’s just in terms of $p$ and $q$??
$$ -2(2 + p) = 5 + q $$
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date: 2021-01-05 09:32
tags:
- '@?school'
- '@?mechanics'
- '@?public'
- '@?year-1'
title: Mechanics - Forces and Motion