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2 years ago

A tractor carrying hay bales has a total mass of 9,100 kg. What force is required to reach an acceleration of 4 m/s^2?

Mathematics

1 answer:

Andreas93 [3]2 years ago

3 0

Answer:

The amount of force needed is 36,400 N

Step-by-step explanation:

In this question, we are asked to calculate the amount of force needed to reach a particular acceleration given the mass of the body.

Mathematically, the amount of force needed can be calculated using the mathematical equation below;

F = m * a

where m is the mass with a value of 9,100kg according to the question

and a is the acceleration with a value of 4 m/s^2

Plugging these values directly, we have ;

F = 9100 * 4 = 36,400N

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Answer:

Step-by-step explanation:

Solution by substitution method

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1 year ago

A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?

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Answer:

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And replacing we got:

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Step-by-step explanation:

For this case we know the population deviation given by:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

$\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error would be:

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And replacing we got:

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Step-by-step explanation:

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Keywords: fractions, simplification

Learn more about fractions at:

#LearnwithBrainly

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