is the average speed for the trip? 3. • An Olympic sprinter can run 100 yards in 9.0 s. At the same rate, how long would it take the sprinter to run 100 m?
is the average speed for the trip? 3. • An Olympic sprinter can run 100 yards in 9.0 s. At the same rate, how long would it take the sprinter to run 100 m?
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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Number 3 how do I work that out
Transcribed Image Text:2.2 One-Dimensional Displacement and Velocity: Vector
Quantities
What is the magnitude of the displacement of a car
that travels half a lap along a circle that has a radius of
150 m? How about when the car travels a full lap?
A motorist travels 80 km at 100 km/h, and 50 km at
75 km/h. What is the average speed for the trip?
3. • An Olympic sprinter can run 100 yards in 9.0 s. At the
same rate, how long would it take the sprinter to run
2.
AF
(No-
100 m?
A hospital nurse walks 25 m to a patient's room at the
end of the hall in 0.50 min. She talks with the patient
for 4.0 min, and then walks back to the nursing station
12. ..
at the same rate she came. What was the nurse's
are t
average
DE,
speed?
5. . A train goes one way and back on a straight, level
track. The first half of the trip is 300 km and is traveled
at a speed of 75 km/h. After a 0.50 h layover, the train
returns the 300 km at a speed of 85 km/h. What is the
unif
insta
train's (a) averag
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