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You are pumping up a bicycle tire with a hand pump, the
Chapter 11, Problem 85(choose chapter or problem)
Problem 85PE
You are pumping up a bicycle tire with a hand pump, the piston of which has a 2.00-cm radius. (a) What force in newtons must you exert to create a pressure of 6.90×105 Pa (b) What is unreasonable about this (a) result? (c) Which premises are unreasonable or inconsistent?
Questions & Answers
QUESTION:
Problem 85PE
You are pumping up a bicycle tire with a hand pump, the piston of which has a 2.00-cm radius. (a) What force in newtons must you exert to create a pressure of 6.90×105 Pa (b) What is unreasonable about this (a) result? (c) Which premises are unreasonable or inconsistent?
ANSWER:
Solution 85PE
Force , area and pressure are related as .
Part a
Step 1 of 4
Given data:
The radius of the piston cm
m
The area of cross-section of the piston,
m2
m2