A paraglider started to descent in his wingsuit. Knowing that air resistance will be significant to make the paraglider to be safe, which of the following will happen to its acceleration and velocity vectors? - Acceleration decreases while velocity increases - Acceleration increases while velocity increases - Acceleration constant while velocity decreases - Acceleration increases while velocity decreases

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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a. A paraglider started to descent in his wingsuit. Knowing that air resistance will be significant to make the paraglider to be safe, which of the following will happen to its acceleration and velocity vectors?

- Acceleration decreases while velocity increases
- Acceleration increases while velocity increases
- Acceleration constant while velocity decreases
- Acceleration increases while velocity decreases

b. A car moving at 100 km/hr along a straight road suddenly hit the brakes. Which of the following is true about the acceleration and velocity vectors?

- The acceleration and velocity vectors are perpendicular to each other.
- The acceleration and velocity vectors are parallel to each other.
- The acceleration and velocity vectors are at 45 degrees to each other.
- The acceleration and velocity vectors are at 180 degrees to each other.

c. What is the acceleration of a car started from rest, and moved at 10 m/s for 10 s?

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