Chapter 1: Q. 31 (page 30)
Estimate the height of a telephone pole. Give your answer in both feet and meters. Briefly describe how you arrived at this estimate
Short Answer
The average height of the telephone pole is12 meters or 36 feets
Chapter 1: Q. 31 (page 30)
Estimate the height of a telephone pole. Give your answer in both feet and meters. Briefly describe how you arrived at this estimate
The average height of the telephone pole is12 meters or 36 feets
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Get started for freeProblem 44 show a motion diagram. For each of these
problems, write a one or two sentence โstoryโ 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.
Draw a pictorial representation for the following problem. Do
not solve the problem. What acceleration does a rocket need to reach a speed of 200 m/s at a height of 1.0 km?
For Problem 39, draw a complete pictorial representation. Do not solve these problems or do any mathematics.
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30ยฐ. If Santa slides 10 m before reaching the edge, what is his speed as he leaves the roof?
a. The figure given below shows the first three points of a motion diagram. Is the objectโs average speed between points 1 and 2 greater than, less than, or equal to its average speed between points 0 and 1? Explain how you can tell.
b. Use Tactics Box 1.3 to find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity vectors and acceleration vector
For Problem 38, draw a complete pictorial representation. Do not solve these problems or do any mathematics.
A speed skater moving across frictionless ice at 8.0 m/s hits a 5.0-m-wide patch of rough ice. She slows steadily, then continues on at 6.0 m/s. What is her acceleration on the rough ice?
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