What are two things you do ahead of time to prepare for a lab

Physics

2 answers:

Oxana [17]3 years ago

6 0

Wear your proper gear and gather all nessesary materials with instructors permission.

Fofino [41]3 years ago

3 0

-- Review the part of the book and your notes that deal with the lab topic.

-- Read the lab exercise so you know what you'll be doing in lab today.

-- Gather up everything you'll need to have there ... not the stuff like
chemicals or equipment that they'll give you in lab, but the stuff that
you're expected to bring; like pencils, lab notebook, scratch paper,
your calculator, a ruler, things like that.

-- Go to the bathroom.

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Explanation:

<u>Diagonal Launch </u>

It's a physical event that happens where an object is thrown in free air (no friction) forming an angle with the horizontal reference. The object then describes a path called a parabola.

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$\displaystyle y=y_o+v_osin\theta \ t-\frac{gt^2}{2}$

Where vo is the initial speed, $\theta$ is the angle, t is the time and g is the acceleration of gravity .

In this problem we'll assume the arrow was launched from the ground level (won't consider the archer's height). Thus $y_o=0$ , and:

$\displaystyle y=v_osin\theta \ t-\frac{gt^2}{2}$

The value of y is zero twice: when t=0 (at launching time) and in t= $t_f$ when it goes back to the ground. We need to find that time $t_f$ by making $y=0$