For this study, the researcher is analyzing data by using __________ measures. A. experimental B. qualitative C. quantitative D.
1 answer:
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Answer:
A. The box experiences more friction on the carpeted floor
Explanation:
Friction is the force that opposes the motion of an object when it slides along a surface. The magnitude of the friction is given by
where m is the mass of the object, g is the acceleration due to gravity, and is the coefficient of friction, which depends on the type of material of the surface: the larger this coefficient, the stronger the friction, the more difficult is to push the box along the surface. Generally, a smooth surface has a lower coefficient of friction, while a rough surface has a larger coefficient of friction.
In this case, Ethan find it easier to push the box on the marble floor, because marble is smoother than the carpet and so friction is weaker, while for the carpeted floor the coefficient of friction is larger and so the friction is stronger, making it more difficult to push the box.
Answer:
3.76 N
Explanation:
We are given that two force vectors point in opposite directions.
Let
Because second force act in opposite direction.
We have to find the magnitude of sum of two forces.
We know that triangle law of addition
Resultant sum=
Substitute the values then we get
Resultant sum of two forces=
Resultant sum of two forces=3.76 N
Hence, the magnitude of sum of two forces=3.76 N