The average speed is 615.7 mph (275.2 m/s)
Explanation:
The average speed of an object gives a measure of how fast an object is moving over a certain time interval. It is a scalar quantity, and it is calculated as follows
[tex]v=\frac{d}{t}[/tex]
where
v is the average speed
d is the distance covered
t is the time interval
For the jet in this problem, we have:
d = 1293 mi is the distance covered
t = 2.1 h is the time interval
Therefore, the average speed is:
[tex]v=\frac{1293}{2.1}=615.7 mph[/tex]
We can also convert into SI units (m/s), keeping in mind that:
[tex]1 mi = 1609 m\\1 h = 3600 s[/tex]
And so
[tex]v=615.7 \frac{mi}{h}\cdot \frac{1609 m/mi}{3600 s/h}=275.2 m/s[/tex]
Learn more about average speed:
brainly.com/question/8893949
brainly.com/question/5063905
#LearnwithBrainly
