At time t = 5 seconds, the position of a model car is 6 meters. At time t = 10 seconds, the position is 14 meters. Determine the average speed of the car for this time interval by calculating the slope between these two points. The time is plotted on the x-axis.t
2006-08-24 13:08:39 · 13 answers · asked by cammiechameleon1 1 in Science & Mathematics ➔ Physics
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2006-08-24 13:19:20 · update #1
the average speed is 8/5 meters per second
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2006-08-24 13:10:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋
10 - 5 =5 the interval is 5 seconds
14 - 6 = 8 the distance is 8 meters
8/5 of a meter per second 1 3/5 m/s
2006-08-24 13:12:06 · answer #2 · answered by helixburger 6 · 0⤊ 0⤋
Take graph paper and mark the horizontal axis t and the vertical axis x. The problem gives you two points on the paper; plot these and connect them with a straight line. But the problem can be easily solved arithmetically: the car moves 8 meters in 5 seconds, so its speed is 1.6 meters per second.
Previous responder's answer is not correct.
2006-08-24 17:05:00 · answer #3 · answered by Anonymous · 0⤊ 0⤋
hi
assuming the speed is constant for each 5 seconds time (without acceleration) the first speed would be 6/5 m/s and the second one would be 8/5 m/s so the average would be 14/10 = 7/5 m/s
you have to calculate the speed for the 2 different movements and then find the average,
saludos nexusdhr84
2006-08-24 13:25:40 · answer #4 · answered by nexusdhr84 2 · 0⤊ 0⤋
t=5 , the car is 6 metres
t=10, the car is 14 metres
In 5 seconds, the car travels 8 metres.
The average speed is 5/8 metres per second
Which is 0.625metres/seconds
You can draw it on a graph.
t on the y axis
metres on the x axis.
And you'll see that everytime y rises by 5, x increases by 8.
Slope is rise/run, which is y/x
So the slope is 5/8, which is also the average.
2006-08-24 13:13:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋
average speed is distance covered over time. the car goes 8 meters in 5 seconds, so the avg. speed is 8/5 meters/second
2006-08-24 13:10:49 · answer #6 · answered by Wocka wocka 6 · 0⤊ 0⤋
slope is change in y over change in x
distance is y so difference is 8 meters
time is x so difference is 5 seconds
8/5 equals 1.6 meters per second
2006-08-24 13:11:03 · answer #7 · answered by naked_in_lake 2 · 0⤊ 0⤋
Slope of a line is (change in y) / (change in x).
In your example, y is distance (or position), and x is time.
To find change, subtract the end value from the beginning value.
So, change in y = (14m - 6m)
Change in x = (10s - 5s)
Slope = (14m - 6m) / (10s - 5s) = average speed of model car (in m/s)
2006-08-24 13:12:42 · answer #8 · answered by the_souphead 2 · 1⤊ 0⤋
slope is 8/5
2006-08-24 13:11:16 · answer #9 · answered by city 3 · 0⤊ 0⤋
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2016-11-27 19:49:50 · answer #10 · answered by Anonymous · 0⤊ 0⤋