4) In a hydraulic lift in a car-repair shop, the diameter of the small piston is 22 cm, and the diameter of the large piston is 1.98 m. A 1470-kg car (including the platform) is to be lifted up on the large piston. a) How hard must a person push down on the small piston? Express your answer in Newtons, and also in lbs. [1 lb = 4.45 Newtons] b) If each stroke that the person applies (on the small piston) presses the piston down by 54 cm, how many strokes in a row does the person have to apply, in order to lift up the car by a total distance of 24 cm?
4) In a hydraulic lift in a car-repair shop, the diameter of the small piston is 22 cm, and the diameter of the large piston is 1.98 m. A 1470-kg car (including the platform) is to be lifted up on the large piston. a) How hard must a person push down on the small piston? Express your answer in Newtons, and also in lbs. [1 lb = 4.45 Newtons] b) If each stroke that the person applies (on the small piston) presses the piston down by 54 cm, how many strokes in a row does the person have to apply, in order to lift up the car by a total distance of 24 cm?
College Physics
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ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![4) In a hydraulic lift in a car-repair shop, the diameter of the small piston is 22 cm, and the diameter
of the large piston is 1.98 m. A 1470-kg car (including the platform) is to be lifted up on the large
piston.
a) How hard must a person push down on the small piston? Express your answer in Newtons, and
also in lbs. [1 lb = 4.45 Newtons]
b) If each stroke that the person applies (on the small piston) presses the piston down by 54 cm, how
many strokes in a row does the person have to apply, in order to lift up the car by a total distance of
24 cm?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faed98d17-5ec6-4d60-bd64-2503863971fa%2F3507bce4-7902-45f6-b083-1fd020b4ffe4%2Fxqupjvi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4) In a hydraulic lift in a car-repair shop, the diameter of the small piston is 22 cm, and the diameter
of the large piston is 1.98 m. A 1470-kg car (including the platform) is to be lifted up on the large
piston.
a) How hard must a person push down on the small piston? Express your answer in Newtons, and
also in lbs. [1 lb = 4.45 Newtons]
b) If each stroke that the person applies (on the small piston) presses the piston down by 54 cm, how
many strokes in a row does the person have to apply, in order to lift up the car by a total distance of
24 cm?
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