A box weighing 100N is at rest on a horizontal floor. The coefficient of the static friction sin between the box and the floor is 0.4. What is the Fcos e smallest force exerted eastward and upward at an angle of 30" with the horizontal that can start the box in motion?
A box weighing 100N is at rest on a horizontal floor. The coefficient of the static friction sin between the box and the floor is 0.4. What is the Fcos e smallest force exerted eastward and upward at an angle of 30" with the horizontal that can start the box in motion?
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A box weighing 100 N is at rest on a horizontal
floor. The coefficient of the static friction
Fsin e
between the box and the floor is 0.4. What is the
- Mr
smallest foree exerted castward and upward at an
angle of 30" with the horizontal that can start the
F cos 6
box in motion?
Q2:
Use dimensional analysis to determine which of the following equation is certainly
wrong:
Where i. and h are the lengths and | F] = [MLTJ. The other symbols have their usual
meaning?
Q3:
What is the sum å + b if å (-4.0 m) i+(3.0 m) jand b ( -11.0 m) i+ (7.0m)j?
What are the (b) magnitude and (c) direction of a + b
Q4:
Figure shows three forces applied to a trunk that
moves leftward by 3.00 m over a frictionless floor.
The force magnitudes are F1 = 7.00 Ib, F2 = 10.00 Ibs
and F3= 3.00N, and the indi le O
g ne unspeeent, (a) what is the net work done
on the trunk by the three fortes and (b) does the kinetic
energy of the trunk increase or decrease?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F060b47a7-03cf-4cd1-aea7-015f1bb4a81e%2F7205cd01-6a01-4777-b520-7e3b23c279fe%2F37aami_processed.jpeg&w=3840&q=75)
Transcribed Image Text:* Untitled Question
A box weighing 100 N is at rest on a horizontal
floor. The coefficient of the static friction
Fsin e
between the box and the floor is 0.4. What is the
- Mr
smallest foree exerted castward and upward at an
angle of 30" with the horizontal that can start the
F cos 6
box in motion?
Q2:
Use dimensional analysis to determine which of the following equation is certainly
wrong:
Where i. and h are the lengths and | F] = [MLTJ. The other symbols have their usual
meaning?
Q3:
What is the sum å + b if å (-4.0 m) i+(3.0 m) jand b ( -11.0 m) i+ (7.0m)j?
What are the (b) magnitude and (c) direction of a + b
Q4:
Figure shows three forces applied to a trunk that
moves leftward by 3.00 m over a frictionless floor.
The force magnitudes are F1 = 7.00 Ib, F2 = 10.00 Ibs
and F3= 3.00N, and the indi le O
g ne unspeeent, (a) what is the net work done
on the trunk by the three fortes and (b) does the kinetic
energy of the trunk increase or decrease?
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