Question: A hand - driven tire pump has a piston with a 2 . 4 cm diameter and a maximum stroke of 2 8 cm (

A hand-driven tire pump has a piston with a 2.4cm diameter and a maximum stroke of 28cm
(a) how much work do you do in one stroke if the average gauge pressure is 2.1 x 10^5
(b) What average force do you exert on the piston, neglecting friction and gravitational force?

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