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goblinko [34]
3 years ago
9

Type the correct answer in the box. Use numerals instead of words. If a force of 40 newtons moves a cart a distance of 9 meters,

the work done is [space] Nm. If the same force moves the same cart three times that distance, the work done is [space] Nm.
Mathematics
2 answers:
Tpy6a [65]3 years ago
5 0

Answer:

<em>For distance of 9 meters, work done is 360 Nm and for three times of that distance, work done is 1080 Nm.</em>

Step-by-step explanation:

<u>Formula for work done</u> is:  W= F\times D , where F= Force and D= Distance.

Now a force of 40 newtons moves a cart a distance of 9 meters. That means here,  F= 40 and D=9

So, the work done will be:  W= (40\times 9)Nm = 360 Nm.

If the same force moves the same cart three times that distance, then F=40 and D=(9*3)= 27

So, the work done will be:  W= (40\times 27)Nm= 1080 Nm.

AnnyKZ [126]3 years ago
5 0

Answer:

The first space was 360 but the second space wasn't 1080

Step-by-step explanation:

I got this question on a test and got part of it right (because the second answer was wrong)

Please mark as brainliest :)

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aivan3 [116]

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\mathbf{Height = 20}

\mathbf{Length = 28}

<em>Assume she starts from the origin (0,0)</em>

The midpoint would be:

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Express properly as:

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A point on the graph would be:

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\mathbf{0 = a(28 - 14)^2 + 20}

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Collect like terms

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\mathbf{a =- \frac{20}{196}}

Simplify

\mathbf{a =- \frac{5}{49}}

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\mathbf{y = -\frac{5}{49}(x - 14)^2 + 20}

Hence, the equation of the parabola  that describes the path of her jump is \mathbf{y = -\frac{5}{49}(x - 14)^2 + 20}

See attachment for the graph

Read more about equations of parabola at:

brainly.com/question/4074088

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