If a math problem asks for the answer as a %, doesn't the answer need two digits? example: 7/10 = 70%
1 answer:
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Answer:
900 miles
Step-by-step explanation:
Given:
Total time taken by Kris is 14 hours.
Speed of Kris is, Speed = 75 mph
Time spent while taking a break is 2 hours.
So, time Kris drove his vehicle is given as the difference of total time and time spent in break. Therefore,
Actual time of driving = 14 - 2 = 12 hours.
Now, distance traveled is given as the product of speed and time of driving.
∴ Distance = Speed Time
Distance =
Therefore, Kris drove 900 miles.
The velocity equation is:
Such that:
And the velocity is zero for x = 4.5
<h3>How to find the velocity equation?</h3>
We know that the position equation is:
To get the velocity, we need to differentiate with respect to x, so we get:
Now we want to get the velocity for x = 0 and x = 2, we will get:
Then, when x = 0, the velocity is 108 ft/s, when x = 2 the velocity is 60 ft/2.
Finally, we need to solve:
The velocity is zero when x = 4.5
If you want to learn more about velocity:
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