Chapter 1: Q. 30 (page 30)
Estimate (don’t measure!) the length of a typical car. Give your answer in both feet and meters. Briefly describe how you arrived at this estimate
Short Answer
The length of a car is4.5 meters or 13.5 feets
Chapter 1: Q. 30 (page 30)
Estimate (don’t measure!) the length of a typical car. Give your answer in both feet and meters. Briefly describe how you arrived at this estimate
The length of a car is4.5 meters or 13.5 feets
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Get started for freeProblem 48 show a motion diagram. For each of these
problems, write a one or two sentence “story” about a real object
that has this motion diagram. Your stories should talk about people or
objects by name and say what they are doing.
FIGURE EX2.8 shows the velocity graph for a particle having
initial position at . At what time or times is the particle found at?
Problems 49 show a partial motion diagram. For each:
a. Complete the motion diagram by adding acceleration vectors.
b. Write a physics problem for which this is the correct motion
diagram. Be imaginative! Don’t forget to include enough
information to make the problem complete and to state clearly
what is to be found.
c. Draw a pictorial representation for your problem.
A speed skater accelerates from rest and then keeps skating at a constant speed. Draw a complete motion diagram of the skater
Using the approximate conversion factors in Table 1.5, convert the following SI units to English units without using your calculator.
a. 30 cm b. 25 m/s
c. 5 km d. 0.5 cm
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