A hydraulic lift office chair has its seat attached to a piston with an area of
11.2 cm2
. The chair is raised by exerting force on another piston, with an area
of 4.12 cm2
. If a person sitting on the chair exerts a downward force of 219 N,
what force needs to be exerted on the small piston to lift the seat?

  1. 👍 3
  2. 👎 0
  3. 👁 1,465
  1. Force on big piston/force on small piston = 11.2/4.12 = 2.72 which is the mechanical advantage of our hydraulic jack machine

    219/2.72 = 80.5 Newtons

    That is a pretty light person by the way.

    1. 👍 2
    2. 👎 1
  2. 80.56 N

    1. 👍 2
    2. 👎 2
  3. 11.2/4.12=2.72, 219/2.72=80.5 N
    thanks Ms. Smith!

    1. 👍 2
    2. 👎 1
  4. your

    1. 👍 8
    2. 👎 5
  5. A1 = 4.12 x 219 / 11.2 = 80.5N

    1. 👍 2
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    in the hydraulic machine shown, you observe that when the small piston is pulled down 10cm, yhe large piston is raised 1 cm. if the small piston is pushed down with a force of 100n, what is the most weight that the large piston

  2. physics

    The small piston of a hydraulic lift has a diameter of 8 cm and its large piston has a diameter of 40cm. The lift raises a load of 15,000 Newtons. A. Determine the force that must be applied to the small piston. B. Determine the

  3. physics

    a hydraulic lift is designed for a gain of 100, so that a 10 N force applied at theinput piston will produce a force of 1,000 N at the output piston. If the radius of the input piston is 2 cm, the radius of the output is a) 200

  4. PHYSICS - plz help

    A house painter uses a chair and pulley arrangement to lift himself up the side of a house. The painter's mass is 69.2 kg and the chair's mass is 24.0 kg. With what force must he pull down on the rope in order to accelerate upward

  1. science

    the small piston of a hydraulic press has an area of 2.0 cm and the large piston has an area of 16 cm if the small piston has a force of 4.0 N applied to it the output force of the large piston is

  2. physics

    The load-bearing piston in a certain hydraulic system has an area 20 times as large as the input piston. If the larger piston supports a load of 2000N, how large a force must be applied to the input piston? A certain boat

  3. Physics


  4. Physics

    In a hydraulic lift, the radii of the pistons are 2.93 cm and 10.1 cm. A car weighing W = 11.0 kN is to be lifted by the force of the large piston. (a) What force Fa must be applied to the small piston? N (b) When the small piston

  1. physics

    If the input piston of a hydraulic jack has a radius of 0.005 m, what force is necessary to apply to it to lift a 1500-kg car on the output piston whose radius is 0.5 m?

  2. physics

    In a hydraulic piston, the small piston has a diameter of 2cm and the large piston has a diameter of 6m. How much more force can the larger piston exert compared with the force applied to the smaller piston?

  3. Physics

    In a machine shop, a hydraulic lift is used to raise heavy equipment for repairs. The sys- tem has a small piston with a cross-sectional area of 0.063 m2 and a large piston with a cross-sectional area of 0.172 m2. An engine


    The piston of hydraulic automobile lift is 0.30 m in diameter. Calculate the gauge pressure required to lift a car with a mass 1000 kg in, A) Pascals B) Atm

You can view more similar questions or ask a new question.