Answer:
0.061 J
Explanation:
The kinetic energy of an object is given by
where
m is the mass of the object
v is its speed
For the toy truck in the problem, we have
m = 0.1 kg is its mass
v = 1.1 m/s is its speed
Putting the numbers into the equation, we find
Data’s conclusion is considered
valid if the experiment validity is being controlled. With this conclusion
validity, our data gathered and presented are considered a reasonable one.
It is the most important types of validity. As what is said, by having conclusion
validity, your data will be undoubtedly least considered since it is labelled
as statistical and well-studied. Once you already mention the word
statistics meaning it is studied and surveyed with the most of the human
race and includes relationship in your data.
You cannot directly subtract the given values because their units are different. To be consistent, let's convert kilograms to grams with the conversion that 1,000 g = 1 kg.
43.278 kg(1,000 g/1 kg) - 28.1 g = 43249.9 grams
In subtraction, you will base the number of significant figures to the least of the given data. Since 28.1 has 3 significant figures, the answer should also contain 3 significant figures. Thus, it is much more convenient to report it in terms of kilograms.
43249.9 grams * 1 kg/ 1,000 g = 43.2 kg
