An 18-kg slab slides down a 15° inclined plane on a 3-mm-thick film of SAE 10 oil at 20 °C; the contact area is 0.3 m. Find the terminal velocity of the slab.
An 18-kg slab slides down a 15° inclined plane on a 3-mm-thick film of SAE 10 oil at 20 °C; the contact area is 0.3 m. Find the terminal velocity of the slab.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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An 18-kg slab slides down a 15° inclined plane on a 3-mm-thick film of SAE 10 oil at 20 °C; the contact area is 0.3 m. Find the terminal velocity of the slab.
 – (27.1v7)(0.3) =0
vr = 5.62 m/s
W=C18)(9.81) N
dy = 3 mm
9: 15°
X Fig. 1-13](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8eb5e1d0-17bd-4496-aec2-d8389b1b71c5%2Ff0784b72-0477-4978-ba21-f7c0ecc3f512%2F6ft8lth_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An 18-kg slab slides down a 15° inclined plane on a 3-mm-thick film of SAE 10 oil at 20 °C; the contact area is
0.3 m?. Find the terminal velocity of the slab.
I See Fig. 1-13.
EF, = 0
W sin 0 – TApottom =0
T= u (du/dy) = (8.14 x 10-2)(vr/0.003) = 27.1v7
%3D
[(18)(9.81)](sin 15°) – (27.1v7)(0.3) =0
vr = 5.62 m/s
W=C18)(9.81) N
dy = 3 mm
9: 15°
X Fig. 1-13
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