Which of the following best compares average speed with average velocity? A Average speed is always less than average velocity. B Average speed has units of mph and average velocity has units of m/s. Average speed is a vector quantity, but average velocity is a scalar quantity. D Average speed has only magnitude, but average velocity has both magnitude an

Which of the following best compares average speed with average velocity? A Average speed is always less than average velocity. B Average speed has units of mph and average velocity has units of m/s. Average speed is a vector quantity, but average velocity is a scalar quantity. D Average speed has only magnitude, but average velocity has both magnitude an

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 13PQ: A garden snail named Archie, owned by Carl Branhorn of Pott Row, England, covered a 33-cm course in...

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A garden snail named Archie, owned by Carl Branhorn of Pott Row, England, covered a 33-cm course in 2.0 min at the 1995 World Snail Racing Championships, held in Longhan, England (Fig. P1.13). Determine Archies average speed Sav = d/t in the appropriate SI units.
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, and then returns to its starting point. This trip takes 0.75 hr. a) What was the bear's average speed? b) What was the bear's average velocity?
One of the fastest known animals is the Indian spine-tailed swift. A swift flies 2.80 km due north in a time of 32.8 s. a. What is its average velocity due north in meters per second? Enter a positive value if the average velocity is due north and enter a negative value if it is due south. answer in m/s b. What is its average velocity due north in miles per hour? Enter a positive value if the average velocity is due north and enter a negative value if it is due south. anser in mi/h
A car starts from 2.0 m/s and accelerates at 4.0 m/s2 for 6.0 s, it coasts for 5.0 s, and then slows down at a rate of 2.0 m/s2 to a stop. How far has it traveled, in meters? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A jet accelerates at a constant rate from rest, traveling 900 m in 3.0 s. What is the magnitude of its acceleration, in m/s?? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
During 55 successive 1.001.00 min intervals, a runner moves at the following constant speeds: 0.4000.400 km/min, 0.2000.200 km/min, 0.1100.110 km/min, 0.1100.110 km/min, and 0.3600.360 km/min. a.) Find the total distance traveled. b.) Find the average speed.
An ant travels 3.95 inches due east, then turns and travels an additional 3.35 inches south. The ant walked east for 2.25 minutes and south for 3.15 minutes. a) What is the ant's average speed over the entire trip in the given units? O 1.35 inches/minute O 1.76 inches/minute O1.06 inches/minute O 2.32 inches/minute O 3.24 inches/minute b) What is the ant's average speed over the entire trip in Sl units? 3,190 m/s 2.06 m/s O 0.000572 m/s
A stone is thrown vertically upward with a speed of 17.6 m/sm/s from the edge of a cliff 75.0 mm high. A.)How much later does it reach the bottom of the cliff? Express your answer to three significant figures and include the appropriate units. B.)What is its speed just before hitting? Express your answer to three significant figures and include the appropriate units. C.)What total distance did it travel? Express your answer to three significant figures and include the appropriate units.
A ball is thrown from the top of a building and falls to the ground below. Its path is determine by the equation h=-4t square + 36t + 40, where h is the height above the ground in meters and t is the elapsed time in seconds. Determine: a. The maximum height the ball reaches and the time it takes to reach maximum height by using the method of completing the square. Keep in fraction form. b. Determine when the ball hits the ground. c. What is the height of the building.
A person runs 800 m at an average speed of 6 m/s and then the next 800 m at an average speed of 8 m/s.a. Calculate the total time required.b. Find the average speed.
Part (a) What is its velocity after 23 seconds? Give your answer in m/s. Numeric : A numeric value is expected and not an expression. V = Part (b) How far has it gone in meters? Numeric : A numeric value is expected and not an expression. X =
Starting from a pillar, you run 400 m east (+x direction) at an average speed of 4 m/s, and then run 560 m north (+y direction) at an average speed of 7 m/s to a post. Calculate your average speed from pillar to post. a.) 82 m/s b.) 5.33 m/s c.) Not enough information.