Section C (Comprehensions) Comprehension I A pumped-up bicycle tire has a volume of about 1 litr...

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Section C (Comprehensions)
Comprehension I
A pumped-up bicycle tire has a volume of about 1 litre and when properly inflated, it is at a total pressure of about 8 bar. A typical hand bicycle pump has a piston cross section area of \( 4 \mathrm{~cm}^{2} \) and a stroke length of \( 25 \mathrm{~cm} \). The atmospheric pressure is 1 bar \( \left(g=10 \mathrm{~ms}^{-2}\right) \).
How many strokes of the hand pump assuming no leakage or heating effects would be needed to inflate the tire?
(a) 40
(b) 50
(c) 80
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