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Artemon [7]
1 year ago
8

For a moving object, the force acting on the object varies directly with the object's scceleration. When a force of 90 N acts on

a certain object, the acceleration of the ebject is 9m^(2)s^(2), If the force is changed to 100N, what will be the acceleration of the object?
Mathematics
1 answer:
andrezito [222]1 year ago
7 0

The acceleration if the object when force is 100N is 10 meters per seconds squared

<h3>How to find the acceleration of the object</h3>

Given the direct variation relationship

force , f α acceleration, a

f = ka

k = constant of variation

solving for k

90 = k * 9

k = 90/9

k = 10

when force is 100N

100 = 10 * a

a = 100 / 10

a = 10

Learn more about acceleration here:

brainly.com/question/25749514

#SPJ1

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<u>Answer:</u>

The amount lost over the 3 years s 2567.25£  

<u>Explanation:</u>

$\mathrm{F}=\mathrm{I} \times\left(1-\left(\frac{r}{100}\right)\right)^{\mathrm{n}}$

where F = final value after n years

I = initial value of the car in 2017 = £18000 (given)

Since the value is depreciated 5% every year for 3 years,

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n = 3 years

Substituting these values in formula, we get

$\mathrm{F}=18000 \times\left(1-\frac{5}{100}\right)^{3}$

= $18000 \times\left(\frac{95}{100}\right)^{3}$

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Finally 18000-15432.75 = 2567.25£ is the amount lost over this period.  

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Answer:

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Step-by-step explanation:

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#John's selling price can be calculated by first adding profit, i to $450, the d to the new price as:

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Hence, John will resell the bike at $643.50

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