![subject](/tpl/images/cats/mat.png)
Mathematics, 14.06.2021 06:20 lizdeleon248
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t + 2 cos(t), (15 − t)(1 − sin(t))> for 0 ≤ t ≤ 15 minutes, with x and y measured in meters.
The derivatives of these functions are given by x′(t) = 6 − 2sin(t) and y′(t) = −15cos(t) + tcos(t) − 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: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:40
The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:40
Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain
Answers: 3
You know the right answer?
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t + 2 co...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.03.2022 22:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.03.2022 22:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.03.2022 22:50
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2022 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.03.2022 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
Engineering, 05.03.2022 23:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/User.png)