User:Gilbertlopez04/Physic 15

Physic For everyday Phenomena
What is physics? In our daily lives we ecnounter the many experience that life has to offer, for which we as a people are still understanding.

The Newtonian Revolution
Summary


 * 1) Average and instaneous speed
 * 2) Velocity
 * 3) Acceleration
 * 4) Graphing motion
 * 5) Uniform aceleration

Average and instaneous speed
Terms

or Average speed= distance/ time of travel. Which we can express this as s= d/t [example: If a car travels 180 KM in 3 hours (50 KM in first hour, 62 KM in second hour, and 68 KM in third hour, the average speed of the car (s)=(50+62+68)/3=60KM/hour]
 * 1) Average speed is defined as the distance traveled dived by the time. it is the average rate at which distance is covered. Instanteous speed is the rate at which distance is being covered at a given instant in time and requires that we use very short time intervals for computation.
 * 2) Average speed equals the distance traveled divided by the time of travel.

Sample question: Watching grass grow

Question: the units km/h or m/s have an appropriate size for moving cars or people. Many other process move much more slowly, through. What units would have an appropriate size for measuring the average speedd with which a blade of grass grows?

Solution: When grass is well fertilzed and watered, it is not unsual for it to grow 3 to 6 centimeter in the course of a week. This can be seen by mearsuing the length of the cloppings after moving. If we mleausered the speed in m/s, we would obtain an extrmely small number that would not provide a good intuitive sense of the rate of growth. The units of cm/week or mm/day would provide a better indication of this speed.

An example- If we travel a distance of 260 miles in 5 hours,as it is likely that the trip take place at the speed of 52 MPH? of course not; the speed goes up and down as the rad goes up and down, when we overtake slower vechicles, when rests breaks occur, or when the h highway patrol looms on the horizon. If we want to know how fast we are going at a given instant in time, we read the speedometer, which displays the instance speed of 55 mph.
 * 1) Instantaneous speed is the rate which distance is being covered at a given instant in time. It is found by computing the average speed for a very short time interval i which the speed dose not change apreciabley.

We find an average