Q11 (II) A perSUII JUgs eight čómplete laps around a 400-mtrack in a total time of 14.5 min. Calculate (a) the averagespeed and (b) the average velocity, in m/s.10. (II) Every year the Earth travels about 10° km as it orbits theSun. What is Earth's average speed in km/h?F2-4 Acceleration17. (I) A sports caWhat is its ave**11. (II) A car traveling 95 km/h is 210 m behind a truck trav-eling 75 km/h. How long will it take the car to reach the/truck?18. (I) A sprinterWhat is her ac• 12. (II) Calculate the average speed and average velocity of acomplete round trip in which the outgoing 250 km iscovered at 95 km/h, followed by a 1.0-h lunch break, andthe return 250 km is covered at 55 km/h.19. (II) A sports oin 5.0 s. If it t!is the magnitm/s, and in

Answered: Image /qna-images/answer/ae70a11e-b129-4f1d-9112-d8da184772ea.jpg

Answered: **11. (II) A car traveling 95 km/h is…

**11. (II) A car traveling 95 km/h is 210 m behind a truck trav- W eling 75 km/h. How long will it take the car to reach the/ 18. (I truck?

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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Question

Q11

(II) A perSUII JUgs eight čómplete laps around a 400-m
track in a total time of 14.5 min. Calculate (a) the average
speed and (b) the average velocity, in m/s.
10. (II) Every year the Earth travels about 10° km as it orbits the
Sun. What is Earth's average speed in km/h?
F
2-4 Acceleration
17. (I) A sports ca
What is its ave
**11. (II) A car traveling 95 km/h is 210 m behind a truck trav-
eling 75 km/h. How long will it take the car to reach the/
truck?
18. (I) A sprinter
What is her ac
• 12. (II) Calculate the average speed and average velocity of a
complete round trip in which the outgoing 250 km is
covered at 95 km/h, followed by a 1.0-h lunch break, and
the return 250 km is covered at 55 km/h.
19. (II) A sports o
in 5.0 s. If it t!
is the magnit
m/s, and in

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Problems, Section 9 number,10,11. Please answer the questions
a frictionless plane is 10.0 m long and inclined at 31.0 degree a sled starts at the bottom with an initial speed of 5.40 m/s up to incline. when the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline with an initial speed v1. both sleds reach the bottom of the cline at the same time. A. determine the distance that the first sled traveled up the incline. ___________ m Determine the initial speed of the second sled _________ m/s
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Q5. a) The graph shows the motion of an RC helicopter. What will be the average speed from point ‘A’ to point ‘G’. Between which two points (A-B or E-F) will the speed be more? Calculate.
4. Our second-to-last parachuting idiot (whose mass is 50okg) of the semester has jumped from a height of 20,000m. Her parachute is broken, obviously. Ignoring air resistance, how long will it take her to reach the Earth? At what speed would she hit the a. ground? b. She is subject to a linear air resistance term and a quadratic air resistance term. Which of these terms is likely to dominate? Why? C. Including air resistance, at what velocity will she strike the Earth? (Assume the coefficient to be 0.3Ns/m for quadratic or 0.3 Ns/m for linear, depending on your answer for part b.)
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Rj Gandhi