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What is the expression for the maximum value of friction for which the block will not slide down the incline?
The expression for the maximum value of friction for which the block will not slide down the incline is given by the equation: ( ftextmax mus cdot N ), where ( ftextmax ) is the maximum friction force, ( mus ) is the coefficient of static friction, and ( N ) is the normal force acting on the block.
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.?
In the first situation without wheels, the block of wood is at rest due to static friction between the wood surfaces of the block and the ramp, which resists motion. When wheels are attached, rolling friction replaces static friction, allowing the block to move more easily down the ramp since rolling friction is typically lower than static friction.
How much force do you need to keep a block at a constant velocity why?
To keep a block at a constant velocity, you need to apply a force equal in magnitude but opposite in direction to the force of friction acting on the block. This force is called the kinetic friction force and is dependent on the coefficient of friction between the block and the surface it's on.
Horizontal force required to pull 75 kg block?
To pull a 75 kg block horizontally, you need to overcome the force of static friction between the block and the surface it's on. The force required would depend on the coefficient of static friction between the block and the surface. You can calculate it using the formula: Force of friction = coefficient of static friction × normal force.
What is the relationship between the weights of the block to the friction force?
The friction force is directly proportional to the normal force acting on the block. The normal force is equal to the weight of the block when the block is on a horizontal surface. Therefore, the relationship between the weight of the block and the friction force is that the friction force increases with the weight of the block.
What is the expression for the maximum value of friction for which the block will not slide down the incline?
The expression for the maximum value of friction for which the block will not slide down the incline is given by the equation: ( ftextmax mus cdot N ), where ( ftextmax ) is the maximum friction force, ( mus ) is the coefficient of static friction, and ( N ) is the normal force acting on the block.
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.?
In the first situation without wheels, the block of wood is at rest due to static friction between the wood surfaces of the block and the ramp, which resists motion. When wheels are attached, rolling friction replaces static friction, allowing the block to move more easily down the ramp since rolling friction is typically lower than static friction.
How much force do you need to keep a block at a constant velocity why?
To keep a block at a constant velocity, you need to apply a force equal in magnitude but opposite in direction to the force of friction acting on the block. This force is called the kinetic friction force and is dependent on the coefficient of friction between the block and the surface it's on.
Horizontal force required to pull 75 kg block?
To pull a 75 kg block horizontally, you need to overcome the force of static friction between the block and the surface it's on. The force required would depend on the coefficient of static friction between the block and the surface. You can calculate it using the formula: Force of friction = coefficient of static friction × normal force.
A 10 kg block is held in position against a vertical wall by the application of a horisontal force of magnitude 100 N as shown in the sketch The coefficients of static and kinetic friction between t?
There's no way to know, all you can say is that the upward friction force = 98,1N, and thus that the static friction coeff is bigger than 98,1/100=0,981. To know the static coeff, you should gradually make the horizontal force smaller and see when the block falls down. As for the kin. coeff, you should know the acceleration at which it is falling down.
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 relationship between the weights of the block to the friction force?
The friction force is directly proportional to the normal force acting on the block. The normal force is equal to the weight of the block when the block is on a horizontal surface. Therefore, the relationship between the weight of the block and the friction force is that the friction force increases with the weight of the block.
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.
How does the work done on a sliding block with friction affect its potential energy?
When work is done on a sliding block with friction, it can either increase or decrease the block's potential energy, depending on the direction of the force applied. If the work is done against the force of friction, the potential energy of the block increases. Conversely, if the work is done in the direction of the force of friction, the potential energy of the block decreases.
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
Why does friction never speed up?
Friction always opposes relative motion. It does not oppose motion. Friction is an electric force. It starts acting when two surfaces rub each other. Say a block is pushed and then released, it gets an initial acceleration and its speed starts increasing. Here friction starts playing its part. Friction starts acting on the block in the direction opposite to that of its motion and it also acts on the ground but its effects there are negligible. The friction slowly reduces the acceleration to zero, then at that stage the block has some velocity. Now also friction continues acting backward on it till it comes to rest.Now there is no relative motion or rubbing so no charges appear on the surfaces to provide a frictional force for speeding up the block.
What is the effect of decreasing the block in contact with the table on kinetic friction?
Decreasing the block in contact with the table reduces the normal force acting on the block, which in turn decreases the frictional force. This results in a lower kinetic friction force between the block and the table.
