Social Studies, 02.01.2020 08:31 Derienw6586

Ablock of wood is that rest on a wooden ramp. when wheels are attached to the block of wood, it moves down the ramp. explain each situation in terms of friction

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Answer from: lilo1841

The correct answer for this question is this one:

"Without wheels, the force of sliding friction balances the gravitational force pulling the block down the ramp. There is no net force on the block, so it does not slide down the incline. The gravitational force pulling the block down the ramp is now greater than the friction force between the block and the ramp. Therefore, there is a net force on the block pulling the block down the ramp, so the block begins to move in the direction of this unbalanced force."

Answer from: SkyeShadow525

So, without wheels, the statical friction is enough anule the gravitational force that is "pulling" the block down.

Now the wheels are special in this cases, when the friction on the ramp and the gravity pulls in different directions, but in different parts on the wheel (the friction is in the bottom, where it touches the ramp, and the gravity force is in the top, where is the block). This causes the wheel to make "rolling motion" which is a combination of translation and rotation. Because of this, the block with wheels will move down the ramp.

You should notice that, if the ramp is frictionless, there is no rotation in the wheels, just translation.

Answer from: Quest

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.

Answer from: Quest

where is the rest of the question. this isn't making sense. can you upload a picture of the question?

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Ablock of wood is that rest on a wooden ramp. when wheels are attached to the block of wood, it move...

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