![subject](/tpl/images/cats/mat.png)
Mathematics, 22.03.2021 01:40 kyliegriffis
You may use your calculator but all work must be shown.
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t 2 cos(t), (15 β t)(1 sin(t))> for 0 β€ t β€ 15 minutes, with x and y measured in meters.
The derivatives of these functions are given by xβ²(t) = 6 β 2sin(t) and yβ²(t) = β15cos(t) + tcos(t) β 1 + sin(t).
1. Find the slope of the path at time t = 4. Show the computations that lead to your answer.
2. Find the time when the skier's horizontal position is x = 60.
3. Find the acceleration vector of the skier when the skier's horizontal position is x = 60.
4. Find the speed of the skier when he is at his maximum height and find his speed in meters/min.
5. Find the total distance in meters that the skier travels from t = 0 to t = 15 minutes.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Identify the slope an intercept of the following linear equation y = 1/5x - 6 a. slope: 1/5; intercept: -6 b. slope: 5; intercept: -6 c. slope: -1/5; intercept: 6 d. slope: 1/5; intercept: 6
Answers: 2
You know the right answer?
You may use your calculator but all work must be shown.
Part of a cross-country skier's path can be...
Questions
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 04.12.2020 03:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mir.png)
World Languages, 04.12.2020 03:50
![question](/tpl/images/cats/ekonomika.png)
Business, 04.12.2020 03:50
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/geografiya.png)
Geography, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 04.12.2020 03:50
![question](/tpl/images/cats/mat.png)
Mathematics, 04.12.2020 03:50