Answer:
The acceleration of the box is 0.67 m/s²
Explanation:
Given that,
Mass of box = 30.0 kg
Horizontal force = 230 N
Friction force = 210 N
We need to calculate the acceleration of the box
Using balance equation
Where, F = horizontal force
=frictional force
m= mass of box
a = acceleration
Put the value into the formula
Hence, The acceleration of the box is 0.67 m/s²
The distance from the starting point is same as the hypotenuse of the right angle triangle and the length is 3.606 blocks
<h3>What is Pythagoras rule?</h3>
This is a rule applied in mathematics that states that the sum of both the square of the opposite and the square of adjacent is equals to the square if the hypotenuse. The rule holds true for a right angled triangle.
the part described forms a right angle triangle so the opposite three blocks while the adjacent is two blocks and the hypotenuse will be solved as follows:
Hypotenuse^2 = opposite^2 + adjacent^2
= 3^2 + 2^2
=9 + 4
= 13
Hypotenuse = sqrt(13)
Hypotenuse = 3.606 blocks
Read more on Pythagoras rule here: brainly.com/question/343682
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Answer:
The mass of the object is 15.0 kg
The weight of the object is 147.15 N
Explanation:
The mass of the object is the quantity of matter contained in the object or the measure of the its property of inertia.
The mass is constant through out the universe
The mass of the object is given as 15.0 kg
The weight of the object is the force of attraction of the Earth on the object
The weight is dependent on the interacting objects.
The weight of the object = The mass of the object × Acceleration due to gravity
Where;
The acceleration due to gravity, g = 9.81 m/s²
∴ The weight of the object = 15.0 kg × 9.81 m/s²= 147.15 N
The weight of the object = 147.15 N
She does work from the moment she touches the book until she lets it go. Work is anything that requires energy. Therefore, she is working as she picks up the book, carries it, and when she is lifting it onto the shelf.
Our primary method for localizing sound in the horizontal plane is to compare the arrival time of sound at each ear.