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Harrizon [31]
2 years ago
11

650 N boy and a 419 N girl sit on a 150 N porch swing that is 2.0 m long. If the swing is supported by a chain at each end, what

is the tension in each chain when the boys sits .8 m from one end and the girls sits .5 m from the other end
Physics
1 answer:
Sergio039 [100]2 years ago
7 0

The tension in the two chains T1 and T2 is 676.65 N and 542.53 N respectively.

<h3>Principle of moments</h3>

The Principle of Moments states that when a body is in equip, the sum of clockwise moment about a point is equal to the sum of anticlockwise moment about the same point.

The formula for calculating moment is given below:

  • Moment = Force × perpendicular distance from the pivot

<h3>Calculating the tension in the chains</h3>

From the principle of moments:

Let tension in chain 1 be T1 and tension in chain 2 be T2.

T1 + T2 = 150 + 650 + 419

T1 + T2 =1219

Taking all distances from chain 1,

Sum of Moments = 0

419 × 0.5 + 150 × 0.85 + 650 × 0.9 = T2 × 1.7

T2 = 922/17

T2 = 542.35 N

Then, T1 = 1219 - 542.35

T1 = 676.65 N

Therefore, the tension in the two chains T1 and T2 is 676.65 N and 542.53 N respectively.

Learn more about tension and moments at: brainly.com/question/187404

brainly.com/question/14303536

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Which unit represents a value that is one order of magnitude larger than a decimeter?
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The unit represents a value that is one order of magnitude larger than a decimeter is a meter

<h3>Further explanation </h3>

Magnitude is something that can be measured or counted

The principal amount is the amount that has been determined based on the agreement of the scientists

Derivative magnitude is a quantity derived from the principal amount

There are 7 main quantities that have been determined based on international standards, namely:

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  • 2. Time, second (s)
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The length of the principal is to indicate the distance between two points in a place

The symbol is usually expressed in l, length

Length measurements can be used by several measuring instruments such as ruler, caliper length, meter, screw micrometer

The main length unit consists of 7 units other than other units of length such as inches, miles, yards, feet:

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  • Hectometer, hm
  • Dekameter, dam
  • Meters, m
  • Decimeter, dm
  • centimeters, cm
  • millimeters, mm

Each one unit descends then multiplied by 10, and if one unit increases then divided by 10

Conversion of other mass units:

mm millimeters = 10⁻³ m

km kilometers = 10³ m

µm micrometers (mcm) = 10µm

nm nanometers = 10⁻⁹ m

Gm gigameters = 10⁹ m

ρm picometers = 10⁻¹² m

An order of magnitude used base ten number.

If numbers differ by one order of magnitude, so the number is about 10 times different in quantity . If values differ by two orders of magnitude, they differ about 100.

The decimeter unit is located between the centimeter and meter.

Decimeter value = 10⁻¹m, centimeter = 10⁻² m, so that the unit represents a value that is one order of magnitude larger than a decimeter is meter

 

<h3>Learn more </h3>

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brainly.com/question/8540796

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