In the figure below x=30cm, y=6cm, effort E=60N, A1=4cm2 and A2=12cm2.

      

In the figure below x=30cm, y=6cm, effort E=60N, A1=4cm2 and A2=12cm2.
42320191444.png
Calculate:
a) The force F exerted on the liquid at A1.
b) The velocity ratio of the system.
c) The maximum load that can be raised by the system.

  

Answers


sharon
a)By the principle of moments;
60Nx30cm= Fx6cm
F= (60x30)/6= 300N.

b)V.R of the lever system= effort arm/load arm =30cm/6cm= 5
V.R of the hydraulic system= area of load piston/area of effort piston= 12cm2/4cm2= 3
Therefore, the combined V.R= 5x3= 15.

c)Pressure at A1= Pressure at A2
300N/4cm2 =L/12cm2
L= (300*12)/4 =900N.
sharon kalunda answered the question on April 23, 2019 at 11:51


Next: Describe the various processes through which lakes of Africa have been formed giving examples of each.
Previous: Briefly discuss the challenges experienced in promoting moral development among children.

View More Physics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions