Jerry is conducting an experiment to test friction. His setup is shown below. If he wants to test the friction between different
types of materials, what should he change in the setup above? A. Replace the mass with a different size mass B. Replace the string with a different length string C. Replace the spring scale with a different kind of scale D. Replace the wooden block with a different kind of block
1 answer:
Answer:
The correct option is D
Explanation:
This question is incomplete because of the absence of the setup which as been attached below. The setup shows/determines/tests the friction of wood (which is a block material), since Jerry wants to test the friction between different types of materials, he will have to replace the wooden block with another type of block material of choice so as to determine the friction of that also.
In order to have a comprehensive experiment, Jerry can use 4-5 different types of block material in the course of the experiment.
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Answer:
The magnitude will be "353.5 N". A further solution is given below.
Explanation:
The given values is:
F = 500 N
According to the question,
In ΔABC,
⇒
⇒
then,
⇒
⇒
Now,
The corresponding angle will be:
⇒
⇒
⇒
Aspect of F across the AC arm will be:
=
On putting the values of F, we get
=
=
Component F along the AC (in magnitude) will be:
=
=
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