What does the path of an object look like when it is in uniform motion?

The L-ft ladder has a uniform weight of W lb and rests against the smooth wall at B. θ = 60. If the coefficient of static fricti

Colt1911 [192]

This question is incomplete, the complete question;

The L-ft ladder has a uniform weight of W lb and rests against the smooth wall at B. θ = 60. If the coefficient of static friction at A is μ = 0.4.

Determine the magnitude of force at point A and determine if the ladder will slip. given the following; L = 10 FT, W = 76 lb

Answer:

- the magnitude of force at point A is 79.1033 lb

- since FA < FA_max; Ladder WILL NOT slip

Explanation:

Given that;

∑'MA = 0

⇒ NB [Lsin∅] - W[L/2.cos∅] = 0

NB = W / 2tan∅ -------let this be equation 1

∑Fx = 0

⇒ FA - NB = 0

FA = NB

therefore from equation 1

FA = NB = W / 2tan∅

we substitute in our values

FA = NB = 76 / 2tan(60°) = 21.9393 lb

Now ∑Fy = 0

NA - W = 0

NA = W = 76 lb

Net force at A will be

FA' = √( NA² + FA²)

= √( (W)² + (W / 2tan∅)²)

we substitute in our values

FA' = √( (76)² + (21.9393)²)

= √( 5776 + 481.3328)

= √ 6257.3328

FA' = 79.1033 lb

Therefore the magnitude of force at point A is 79.1033 lb

Now maximum possible frictional force at A

FA_max = μ × NA

so, FA_max = 0.4 × 76

FA_max = 30.4 lb

So by comparing, we can easily see that the actual friction force required for keeping the the ladder stationary i.e (FA) is less than the maximum possible friction available at point A.

Therefore since FA < FA_max; Ladder WILL NOT slip

5 0

3 years ago

What is an example of density

Taya2010 [7]

Ice floating on water and Ice floats on water because it is less dense than water. Things that are less dense float on top of things that are more dense because molecules in ice are further apart than molecules in water.

5 0

3 years ago

What type of galaxy is this?

stiks02 [169]

Answer:

Barred Spiral.

8 0

2 years ago

Two identical loudspeakers are driven in phase by a common oscillator at 750 Hz and face each other at a distance of 1.24 m. Loc

Juli2301 [7.4K]

Answer:

0.2286 m, 0.686 m and 1,143 m

therefore we see that there is respect even where the intensity is minimal

Explanation:

Destructive interference to the two speakers is described by the expression

Δr = (2n +1) λ/2

where r is the distance, λ the wavelength and n an integer indicating the order of the interference

let's locate the origin on the left speaker

let's find the wavelength with the equation

v = λ f

λ = v / f

we substitute

Δr = (2n + 1) v / 2f

let's calculate for difference values of n

Δr = (2n +1) 343/(2 750)

Δr = (2n + 1) 0.2286

we locate the different values for a minimum of interim

n Δr (m)

0 0.2286

1 0.686

2 1,143

therefore we see that there is respect even where the intensity is minimal

6 0

3 years ago

When Patey Pontoons issued 10% bonds on January 1, 2021, with a face amount of $720,000, the market yield for bonds of similar r

wlad13 [49]

Answer:

Explanation:

Interest is paid semiannually on June 30 and December 31. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.) Required: 1. Determine the price of the bonds on January 1, 2021. 2. Prepare the journal entry to record their issuance by Patey on January 1, 2021. 3. Prepare an amortization schedule that determines interest at the effective rate for each period. 4. Prepare the journal entry to record interest on June 30, 2021. 5. What is the amount related to the bonds that Patey will report in its balance sheet on December 31, 2021? 6. What is the amount related to the bonds that Patey will report in its income statement for the year ended December 31, 2021? (Ignore income taxes.) 7. Prepare the appropriate journal entries at maturity on December 31, 2024. Complete this question by entering your answers in the tabs below. Req 1 Reg 2 Reg 2 Req 3 Req3 Req 4 Req 4 Req 5 and 6 Req 7 Reg 7 Determine the price of the bonds at January 1, 2021. (Round final answers to the nearest whole dollar.) Table values are based on: n = Cash Flow Amount Present Value Interest Principal Price of bonds Req 1 Reg 2 Req 3 Req 4 Req 5 and 6 Req 7 Prepare the journal entry to record their issuance by Patey on January 1, 2021. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Round intermediate calculations and final answers to the nearest whole dollar.) View transaction list 1 Record the issuance of the bonds on January 1, 2021. Req 1 Req 2 Req3 Req 4 Req 5 and 6 Req 7 Prepare an amortization schedule that determines interest at the effective rate for each period. (Round intermediate calculations and final answers to the nearest whole dollar.) ...................... Semiannual Bond Interest Discount Interest Cash Interest Carrying Value Period-End Expense Amortization 01/01/2021 06/30/2021 12/31/2021 06/30/2022 12/31/2022 06/30/2023 12/31/2023 06/30/2024 12/31/2024 Total Req 1 Req 2 Req 3 Reg 4 Req 5 and 6 Req 7 Prepare the journal entry to record interest on June 30, 2021. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Round intermediate calculations and final answers to the nearest whole dollar.) View transaction list 1 Record the interest expense on June 30, 2021. Complete this question by entering your answers in the tabs below. Reg 1 Req 2 Req 3 Req 4 Req 5 and 6 Req 7 What is the amount(s) related to the bonds that Patey will report in its balance sheet on December 31, 2021, and income statement for the year ended December 31, 2021? (Ignore income taxes.) (Round intermediate calculations and final answers to the nearest whole dollar.) 5. December 31, 2021 book value 6. Interest expense for 2021 Req 1 Req 2 Req3 Req 4 Req 5 and 6 Req 7 Prepare the appropriate journal entries at maturity on December 31, 2024. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Round intermediate calculations and final answers to the nearest whole dollar.) View transaction list X 1 Record the interest expense on December 31, 2024. 2 Record the retirement of the bond at maturity on December 31, 2024.

3 0

3 years ago

What does the path of an object look like when it is in uniform motion?​

What does the path of an object look like when it is in uniform motion?