# Need a Double Check / Verification

• Inferior Mind
In summary, the diagram shows a coefficient of friction of 0.15 between the 5.0 kg mass and the surface. Using equations, the tension in the cable connecting the two masses is calculated to be 11.9 N and the resulting acceleration is 3.85 m/s2.
Inferior Mind
In the following diagram there is a coefficient of friction, μ, of 0.15 between the 5.0 kg mass and the surface. Calculate the tension in the cable connecting the two masses and the resulting acceleration.

FBD

m1= 2 kg
m2= 5 kg
μ= .15
g= 9.8 m/s2

Equation 1 ~

Fg - FT = FN

2kg × 9.8m/s2 - 2kg(a) = FT

Equation 2 ~

Fg = FN = 5kg (9.8 m/s2)
~ μFN = .15(49) = 7.35 N

FT - FF = ma

FT = 5kg(a) + 7.35

~Set Equations Equal to Each Other~

19.6 - 2a = 5a - 7.35

26.95 = 7a

a = 3.85 m/s2

Sub into Eq to get FT on String

2 (9.8) - 2(3.85) = FT

FT = 11.9 N

Inferior Mind said:
In the following diagram there is a coefficient of friction, μ, of 0.15 between the 5.0 kg mass and the surface. Calculate the tension in the cable connecting the two masses and the resulting acceleration.

FBD
View attachment 55355

m1= 2 kg
m2= 5 kg
μ= .15
g= 9.8 m/s2

Equation 1 ~

Fg - FT = FN

2kg × 9.8m/s2 - 2kg(a) = FT

Equation 2 ~

Fg = FN = 5kg (9.8 m/s2)
~ μFN = .15(49) = 7.35 N

FT - FF = ma

FT = 5kg(a) + 7.35

~Set Equations Equal to Each Other~

19.6 - 2a = 5a - 7.35

26.95 = 7a

a = 3.85 m/s2

Sub into Eq to get FT on String

2 (9.8) - 2(3.85) = FT

FT = 11.9 N

Look Good !

No, it isn't smart guy.

5a + 7.35 =/= 5a - 7.35

## What is the purpose of a double check or verification?

A double check or verification is done in order to ensure the accuracy and reliability of a process, result, or information. It helps to identify and correct any errors or mistakes that may have occurred.

## When is a double check or verification necessary?

A double check or verification is necessary in situations where there is a high level of importance or risk involved. This could include scientific experiments, financial transactions, or critical data analysis.

## Who is responsible for performing a double check or verification?

The responsibility for performing a double check or verification usually falls on the person or team in charge of the process or information. However, in some cases, a third party may also be involved to provide an unbiased review.

## What are the potential consequences of not doing a double check or verification?

The potential consequences of not doing a double check or verification can vary depending on the situation. It could lead to incorrect results, financial loss, or even harm to individuals in certain cases. It can also damage the credibility and trust in the process or information.

## What are the steps involved in a double check or verification process?

The steps involved in a double check or verification process may vary depending on the specific situation. However, some common steps include identifying the key elements to be checked, selecting the appropriate methods or tools, and comparing the results of the initial process with the double check. Finally, any discrepancies or errors should be addressed and corrected.

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