In a car lift, compressed air exerts a force on apiston with a radius of 1.47 cm. This pressureis transmitted to a second piston with a radiusof 12.9 cm.A- How large a force must the compressed airexert to lift 13900 N car? Answer in units ofN.B- What pressure produces this force? Neglectthe weight of the pistons. Answer in units ofPa.Will pick best answer and please look at my other questions.
This Site Might Help You. RE: In a car lift, compressed air exerts a force on a piston with a radius of 1.47 cm. Find force. Please help!? In a car lift, compressed air exerts a force on a piston with a radius of 1.47 cm. This pressure is transmitted to a second piston with a radius of 12.9 cm. A- How large a force must the compressed air exert to lift 13900 N car? Answer in units of N. B- What pressure produces this force?...
r?= 1.47 cm = 1.47 x 10^-2 m r?= 12.9 cm = 12.9 x 10^-2 m W = 13 900 N (A). use formula : => F?/ A?= F?/ A? or : F?/ r?? = F?/ r?? where : F?= W = 13 900 N (weight of the car) then : F?/ r?? = F?/ r?? => F?/ (1.47)? = 13 900/ (12.9)? => F?= 180.5 N (B). use formula : P = F/A and A?= π rr?= 1.47 cm = 1.47 x 10^-2 m r?= 12.9 cm = 12.9 x 10^-2 m W = 13 900 N (A). use formula : => F?/ A?= F?/ A? or : F?/ r?? = F?/ r?? where : F?= W = 13 900 N (weight of the car) then : F?/ r?? = F?/ r?? => F?/ (1.47)? = 13 900/ (12.9)? => F?= 180.5 N (B). use formula : P = F/A and A?= π r?? (area of circle) => P?= F?/ A? => P?= 180.5 / π( 1.47 x 10^-2)? => P?= 180.5 / (6.79 x 10^-4) = 265,832 Pa
