conduct an activity to measure average speed?
Answers
Answer:
racing
Explanation:
take a speed tester and do racing with you friend or siblings and test
MARK AS BRAINLIEST PLS PLS PLS PLS PLS PLS
Answer:
The Experiment: Average Speed and Instantaneous Speed
We reason as follows. Choose a ball that will be used throughout this part of the experiment; place it in the groove on the ramp. Suppose we start a clock (say, at time [Maple Math] ) just as we release the ball. Then the average speed of the ball is the distance traveled by the ball divided by the time of travel. However, we want to know not only the average speed of the ball over the interval [Maple Math] of travel-time but also the actual speed at time [Maple Math] , the so-called instantaneous speed. Of course, the average speed and the instantaneous speed may not be the same. For example, if a car travels from Philadelphia to New York, a distance of 90 miles, in an hour and a half, its average speed is [Maple Math] miles per hour, but its speed as it enters New York may be 80 mph. (What do police radar guns measure? average speed or instantaneous speed?) We will return below to the question of relating instantaneous speed to average speed. For now, we shall content ourselves with calculating average speeds. Thus, in addition to our clock, all we need is a measuring stick, paper, and pencil to record the distances traveled down the ramp by the ball at specific instants of time.
So, with a clock and a meter-stick at hand, we fill in the following table by recording the distances traveled by the ball at the specified times. Here are the results:
elapsed time distance traveled down the ramp
(in seconds) (in meters)
1 .5
2 2
3 4.5
4 8
5 12.5
6 18
We then use these data to calculate the average speeds [Maple Math] down the ramp simply by dividing distance traveled by time of travel:
> u[av]:=[[1,.5/1],[2,2/2],[3,4.5/3],[4,8/4],[5,12.5/5],[6,18/6]];
[Maple Math]
Examining the average speeds tells us something very interesting, namely, that the rate of increase of the average speed is always the same: it is 0.5 meter per second per second. Writing this observation using derivatives, we have [Maple Math] . Now, let us see how we can relate average speed to instantaneous speed.