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If I'm trying to push a huge block what do you have to overcome to move it Just the weight of the block the weight of the block plus friction or weight of the block plus their own body weight?
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∙ 14y ago
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∙ 14y ago
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What forces would be at work if you were trying to move a huge block of stone?
If you were trying to move a huge block of stone, the forces of friction would be applied against you. To get the stone in motion, you must overcome static friction, the friction force that acts on objects that are not moving and is always working in the direction opposite of your applied force. Then, to keep it in motion, you must overcome sliding friction, which, though it takes effort to keep moving a stone, is substantially less than the effort to get a stone into motion originally.
How does friction affect newton's third law?
Friction is encompassed by Newton's laws, as opposed to operating out side of it. If a block slides down a wedge, there is friction acting against the block up the slope. From the wedge's perspective, the block produces a frictional force against it, trying to drag it downwards along the slope.
What is the effect of decreasing the block in contact with the table on kinetic friction?
less friction
What way does the friction act if you're pulling a nail out of the block of wood?
Friction acts towards the nail in the block when you are pulling it out. In other words, it will try to keep the nail in the block and not let it be pulled out by the hammer.
Is the coefficient of friction the same as when the block was standing on its larger (or smaller) end?
The coefficient of friction is the same in this case.
What forces would be at work if you were trying to move a huge block of stone?
If you were trying to move a huge block of stone, the forces of friction would be applied against you. To get the stone in motion, you must overcome static friction, the friction force that acts on objects that are not moving and is always working in the direction opposite of your applied force. Then, to keep it in motion, you must overcome sliding friction, which, though it takes effort to keep moving a stone, is substantially less than the effort to get a stone into motion originally.
Does the coefficient of kinetic friction depend on the weight of the block?
No, It does not depends on weight of block because this weight of block is being balanced by normal force. So by increasing weight of block, there is no effect on coefficient of friction.
How does friction affect newton's third law?
Friction is encompassed by Newton's laws, as opposed to operating out side of it. If a block slides down a wedge, there is friction acting against the block up the slope. From the wedge's perspective, the block produces a frictional force against it, trying to drag it downwards along the slope.
A blocks weight is 36.0 N rests on horizontal table A horizontal f. of 42 N is applied to the block coefficients of static and kinetic fric are 0.650 and 0.420 resp Will the block move under force?
In order for the block to move the force applied has to be greater than the maximum force of static friction. F > fs fs = coefficient of friction * normal force = .65 * 36N // you can use the weight for the normal force since the block is being supported = 23.4N Since applied force of 42N is greater than the 23.4N due to friction, the block will start sliding, where kinetic friction will act on the block.
What is the effect of decreasing the block in contact with the table on kinetic friction?
less friction
A block accelerates at 3.2 down a plane inclined at an angle 30 degrees. Acceleration of gravity is 9.8. Whats the coefficient of static friction between the block and the inclined plane?
Static friction does not apply when the block is already moving. Without friction, the force on the block parallel to the surface of the incline is Fg*sin(angle), so the acceleration without friction is 9.8* sin(30) = 9.8 * (1/2) = 4.9 Since it is accelerating at 3.2, friction is slowing down the block by (4.9-3.2 = 1.7). The coefficient of kinetic friction is (1.7/4.9) = 0.346939
What way does the friction act if you're pulling a nail out of the block of wood?
Friction acts towards the nail in the block when you are pulling it out. In other words, it will try to keep the nail in the block and not let it be pulled out by the hammer.
What terms of friction would I use to describe a block of wood when it is at rest on a wooden ramp then when I add wheels to the block of wood to make it go down the ramp?
at rest it is static friction while on wheels it is rolling friction
Is the coefficient of friction the same as when the block was standing on its larger (or smaller) end?
The coefficient of friction is the same in this case.
What instrument measures friction?
Friction is generally described as either sliding or rolling friction. You could devise any number of instruments to measure it. If you moved a given surface area (say a block) across another surface under pressure from above (say weight) then you could measure the force needed to accelerate the block to a certain velocity. You need a stopwatch, a spring balance (to measure force) and some maths. JCF
What is kinetic friction and static friction?
Friction is the resistance to movement of an object pressing/resting/moving on a surface. It's not intuitively obvious but the standing still friction and moving friction are different. Assume you have a block of wood resting on a tabletop. The amount of force required to make the block begin to move (static friction) is greater than the force required to keep it moving (kinetic friction) after it has begun to move.
A block of wood is at 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.?
first it will have static friction because the object isn't moving.once it rolls it will have rolling friction.
