A screw jack as shown in Fig.3 has the following data: Outer and inner diameter of the screw is 20 mm and 15 mm, pitch 5 mm, square threads, coefficient of friction, u. is 0.15 and its lead. 1, is 10 mm. Find the torque required. T, for rising the car if the capacity of the screw jack, F = (10,12,1.1,16,18,20,2'2) kN. The following formula can be applied, 1+ 2µnd sec a T= F adm - pi sec a where d, mean diameter= (inner diameter +outer diameter)/2 a: angle and equal to zero Fig.3.

Elements Of Electromagnetics
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11:05
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Classroom >
docs.google.com a
question
A screw jack as shown in Fig.3 has the following data: Outer and iner diameter
of the screw is 20 mm and 15 mm. pitch 5 mm, square threads, coefficient of
friction, u. is 0.15 and its lead, I, is 10 mm. Find the torque required, T, for rising
the car if the capacity of the screw jack, F (10,12,1.1,16,18,20,2'2) kN. The
following formula can be applied,
1+2undm sec a
ndm - ul sec a
T = F
where
d, mean diameter= (inner diameter +outer diameter)/2
a: angle and equal to zero
Fig.3.
1 Add file
Read and answer *
Create a row vector that has the following elements: 8. 10/4, 12x1.4, 51.
tan 85°,V26, and 0.15.
Use a single command to create a row vector (assign it to a variable named b)
with 11 elements, such that
b = 0 2468 10 12 9630
Do not type the vector explicitly.
1 Add file
+
->
13
Transcribed Image Text:11:05 !!: Classroom > docs.google.com a question A screw jack as shown in Fig.3 has the following data: Outer and iner diameter of the screw is 20 mm and 15 mm. pitch 5 mm, square threads, coefficient of friction, u. is 0.15 and its lead, I, is 10 mm. Find the torque required, T, for rising the car if the capacity of the screw jack, F (10,12,1.1,16,18,20,2'2) kN. The following formula can be applied, 1+2undm sec a ndm - ul sec a T = F where d, mean diameter= (inner diameter +outer diameter)/2 a: angle and equal to zero Fig.3. 1 Add file Read and answer * Create a row vector that has the following elements: 8. 10/4, 12x1.4, 51. tan 85°,V26, and 0.15. Use a single command to create a row vector (assign it to a variable named b) with 11 elements, such that b = 0 2468 10 12 9630 Do not type the vector explicitly. 1 Add file + -> 13
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