To solve the problem, we need to determine which category best describes activities like brisk walking, running, bicycling, and jumping.
1. Analyzing Each Activity:
- Brisk WalkingRunning - Bicycling - Jumping
These activities are not short bursts (so not speed), nor do they focus on lifting or resistance (so not strength), and while coordination might be involved, it’s not the primary skill being developed. The key component here is the body’s capacity to continue performing for extended durations without fatigue.
3. Definition of Endurance Activities:
Endurance activities are physical exercises that increase heart rate and breathing for an extended time, improving cardiovascular and respiratory efficiency.
Final Answer:
(C) Endurance activities
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).