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 ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?