The 25-cm diameter ram in a hydraulic lift slides in a 25.015-cm diameter cylinder. The viscosity of the oil filling the gap is 0.04 N⋅s/m2. If the speed of the ram is 15 cm/s, determine the frictional resistance force when a 3 m length of the ram is engaged in the cylinder. The answer provided is Fshear ressistance = 188N I just can not seem to figure this out please help.

The 25-cm diameter ram in a hydraulic lift slides in a 25.015-cm diameter cylinder. The viscosity of the oil filling the gap is 0.04 N⋅s/m2. If the speed of the ram is 15 cm/s, determine the frictional resistance force when a 3 m length of the ram is engaged in the cylinder. The answer provided is Fshear ressistance = 188N I just can not seem to figure this out please help.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A steel ball with the density of 6324 kg/m and the radius of 0,48 cm was dropped into the oil whose viscosity was to be measured as is seen in the figure. When the ball attains a constant velocity, the distance that the ball travelled was measured as 97 cm within the time interval of 4 sec. Before the experiment, the mass of the 100 ml-oil was measured as 2,8 gr. According to the data given above, find; a) the density of the oil (in kg/m). (Please do not use any decimal digit.) Yanıt:
A disk of radius R rotates at an angular velocity V inside adisk-shaped container fi lled with oil of viscosity μ , asshown in Fig. Assuming a linear velocity profi le andneglecting shear stress on the outer disk edges, derive aformula for the viscous torque on the disk.
A plate moving 10 cm/s to the right is 0.5 cm above a stagnant wall. The fluid between the plate and the wall has a viscosity of 1.8 cp. Determine the shear stress in the fluid.
A thin plate is pulled at a speed V through a small gap of hieht h as shown in figure below. The space on both sides of the plate contains different types of fluids. Fixed wall Oil ul Plate h V (m/s) Oil p2 Fixed wall Prove that the postion of the plate y takes the form: H,h (H + H2) i. y = When the shear forces are equal on the both sides of the palte. ii. y = Jui+/u2) When the drage force is minimum.
plz plz help me with this one nowwwwww Two plates are separated by 30 mm space. The lower plate moves at velocity of 2 m/s while the upper plate moves at a velocity of 8 m/s. Oil (S=0.51) which fills the space. The oil viscosity is equal to 0.003 m2/s. The variation in velocity of the oil is linear. What is the shear stress in the oil (N/m2)?
A block of mass 4.0 kg moves horizontally on a film of crude oil at 30°C. The contact area of the undersurface is 0.06 m². If initially the block has a speed of 3.0 m/s, find the speed after 1 s. Dynamic viscosity of crude oil at 30° is 1.65 x 10-3 Pa.s. The oil film thickness below block is 0.3mm.
A 200 m long pipe slopes down at 1 in 100 and tapers from 0-25 m diameter to 0-15 m diameter the pressure at th the lower end. If the pipe carries 100 litres of oil of specific gravity 0-85, find lower end. The upper end gauge reads 50 kPa. [Ans. 54-9 kP
Calculate the pressure drop (in kPa) in 100 m of horizontal 20-cm-diameter pipe made of new wrought iron carrying water with mean velocity of 1.5 m/s. The kinematic viscosity of water at 25°C is 8.917x10-7 m?/s. Note: remember to include the sign. Round your answer to 2 decimal places.
Q1) A shaft of diameter (d glycerin-filled sleeve as shown in Figure. The glycerin to be used has a dynamic viscosity of 1.5 Pa.s, and the cable is pulled by 140-N tensile force. If the cable is to be pulled at a velocity of 3.68 m/s and the velocity profile equation though glycerin is (u = 2.4y + 80y2), what is the length of the sleeve that can be used to provide this velocity? Assume that the cable can be kept at the center of the sleeve. = 41-mm) is to be pulled through a (44.1)-cm-diameter Sleeve Shaft P
The velocity distribution of air between two parallel plates is linear. The top plate is moving with a velocity of 5.8 m/s and the distance between two plates is 0.1 cm. Find the shear stress at the lower wall if the dynamic viscosity of air is 2X10-5 N.s/m2. (your answer should be accurate to 5 decimal places)
Calculate the pressure drop (in kPa) in 100 m of horizontal 20-cm-diameter pipe made of new wrought iron carrying water with mean velocity of 1.5 m/s. The kinematic viscosity of water at 25°C is 8.917x107 m2/s. Note: remember to include the sign. Round your answer to 2 decimal places.
From the question he has wrote the given infomation. i dont understand how he has got that from the question