In a hydraulic lift, the smaller piston has an area of 10 cm^2 and the larger piston has an area of 500 cm^2. If a downward force of 100 N is applied to the small piston, what upward load can the large piston support?
Answer and explanation
Correct answer: D. 5,000 N
By Pascal's principle, pressure is transmitted undiminished through an enclosed fluid: P1 = P2 => F1 / A1 = F2 / A2. Rearranging for F2: F2 = F1 (A2 / A1) = 100 N (500 cm^2 / 10 cm^2) = 100 N * 50 = 5,000 N.
Practise more Classical Mechanics, Fluids, Thermodynamics, and Waves.
Free questions with an explanation for every one, and full timed Toelatingsexamen Arts & Tandarts België (Medical & Dental Entrance Exam) mock tests.
More Classical Mechanics, Fluids, Thermodynamics, and Waves questions
- A car accelerates uniformly from rest to a speed of 20 m/s over a distance of 100 m on a straight road. What is the acceleration of the car?
- A projectile is launched from ground level with an initial velocity of 40 m/s at an angle of 30° above the horizontal. Assuming g = 10 m/s^2…
- A 5.0 kg crate is pushed across a horizontal floor by a constant horizontal force of 30 N. If the coefficient of kinetic friction between th…
- A spring with a force constant k = 200 N/m is compressed by 0.10 m from its equilibrium length. How much elastic potential energy is stored…
- A 2.0 kg block is released from rest from a height of 20 m on a frictionless curved ramp. Taking g = 10 m/s^2, what is the speed of the bloc…
- An electric motor lifts a 100 kg elevator cab vertically upward at a constant speed of 2.0 m/s. Taking g = 10 m/s^2, what mechanical power d…