DD =25i need help to do it correctly the solution answered is available and even the answers for 25th in table i just need explanationhow to do it? please thank you! M person80kgsafem ladder30kgcaution unsafeL/3 mass fraction 0.37878788 L mass fraction 0.86363636 Nfloor 1078N Nwall max270NavailableFf max270Navailable L/3 way up the ladder top of ladder DOBTheta degradians Tan thetaCot theta mu requiredFf requiredmu requiredFf reqd 25801.3962634 60.17632698 0.066872.0 0.1523164.2 10 Fir with all5 forres.5 Ng Nw We WpS. for heeand g = 9070=20°notate=0{ = tNg - Wjadler - Wpeisen =0seesprendsheetSor dlahsusersEF, = + f - Nwall =03. E Fx =0Nuall%3D= N walls slip Nuell =p Ng = (0,250)(108ON)So max Nuall breslip is 270Nmax F s also 270|Nand6. {T =Oabout fook wf ladderSo Tuall = Tup + TueSin o =A Wp Sing + E We Sin$2f Sin o = mp g Coso +pergen4/3orCes ometo2.) -( roks + 22)puson can199NE this isSa ladder donnt339 Nelthis is > fimax= 270Ns. the ladder WILL SLIPclinb to 43,but not sately to the too.Tanl70'slip2So.9. 8/N/kgTan 700%3D%3DLYes, person2. A 30kg ladder is leaned against a wall so that it makes an angleof theta with respect to the floor. Theta is (55+xx)degrees (wherexx is your day of birth from 01 to 31), so an angle of55+15 = 70degrees if you were born on the 15th, etc. The top ofthe ladder rests frictionlessly against the wall, and the coefficientof friction between the foot of the ladder and the floor is 0.250An 80kg person wants to know if they can safely climba) one third of the way up the ladder and/orb) to the top.1 Sketch this above, with a FBD for the ladder. Include all relevantforces.2 State the equilibrium equations for this ladder.3 Solve for the Normal force the wall places on the ladder; showyour work.4 Solve for the Normal force the floor places on the ladder; showyour work.5 What is the maximum frictional force the floor can put on theladder (show)?6 Using torques, show whether the person can climbto 1/3 of the ladder and separatelyto the top of the ladder.

Given that: Mass of ladder, M=30 kgAngle with the floor, θ=55+25=80°Coefficient of friction,…

Answered: 6 Using torques, show whether the…

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Physics

6 Using torques, show whether the person can climb to 1/3 of the ladder and separately to the top of the ladder.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 31PQ: A wooden door 2.1 m high and 0.90 m wide is hung by two hinges 1.8 m apart. The lower hinge is 15 cm...

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Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

DD =25

i need help to do it correctly
the solution answered is available and even the answers for 25th in table i just need explanation
how to do it?

please thank you!


M person	80	kg	safe
m ladder	30	kg	caution
			unsafe
L/3 mass fraction
0.37878788

L mass fraction
0.86363636

Nfloor	1078	N
Nwall max	270	N	available
Ff max	270	N	available

					L/3 way up the ladder		top of ladder
DOB	Theta deg	radians	Tan theta	Cot theta	mu required	Ff required	mu required	Ff reqd
25	80	1.3962634	6	0.17632698	0.0668	72.0		0.1523	164.2

10 Fir with all5 forres.
5 Ng Nw We Wp
S. for hee
and g = 9070=20°
notate
=0
{ = tNg - Wjadler - Wpeisen =0
see
sprendsheet
Sor dlahsusers
EF, = + f - Nwall =0
3. E Fx =0
Nuall
%3D
= N walls slip Nuell =p Ng = (0,250)(108ON)
So max Nuall breslip is 270N
max F s also 270|N
and
6. {T =O
about fook wf ladder
So Tuall = Tup + Tue
Sin o =
A Wp Sing + E We Sin$
2
f Sin o = mp g Coso +
pergen
4/3
or
Ces o
me
to
2.
) -
( roks + 22)
puson can
199NE this is
Sa ladder donnt
339 Nelthis is > fimax= 270N
s. the ladder WILL SLIP
clinb to 43,but not sately to the too.
Tanl70'
slip
2
So.
9. 8/N/kg
Tan 700
%3D
%3D
LYes, person
2.

A 30kg ladder is leaned against a wall so that it makes an angle
of theta with respect to the floor. Theta is (55+xx)degrees (where
xx is your day of birth from 01 to 31), so an angle of
55+15 = 70degrees if you were born on the 15th, etc. The top of
the ladder rests frictionlessly against the wall, and the coefficient
of friction between the foot of the ladder and the floor is 0.250
An 80kg person wants to know if they can safely climb
a) one third of the way up the ladder and/or
b) to the top.
1 Sketch this above, with a FBD for the ladder. Include all relevant
forces.
2 State the equilibrium equations for this ladder.
3 Solve for the Normal force the wall places on the ladder; show
your work.
4 Solve for the Normal force the floor places on the ladder; show
your work.
5 What is the maximum frictional force the floor can put on the
ladder (show)?
6 Using torques, show whether the person can climb
to 1/3 of the ladder and separately
to the top of the ladder.

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