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What else can I help you with?
Is friction independent of the area of contact?
Generally no. The friction force is typically assumed independent of surface area, and proportional to the force between the two objects. By changing the contact area, you are changing how that force is concentrated. i.e. a small surface area means that your force is distributed across a small region, creating a high pressure (force/area) at the contact. By increasing the surface area, you distrubte that force and lower the pressure. This is, however, an idealization and can break down in some instances.
Does gravity depend on the planet you are on?
Yes, gravity does depend on the planet you are on. The force of gravity is determined by the mass of the planet and your distance from its center. Therefore, gravity will be different on each planet based on these factors.
What is the force of gravity on earth surface?
The acceleration due to gravity on the surface of Earth is about 9.8m/s2.That's the same for all objects and doesn't depend on the mass of the object.However, the force on an object depends on the mass of the object.That's why different people have different weights, and whymost people weigh less than most trucks.Expressed in terms of force, the Earth's surface gravity is about 9.8 newtons per kilogram.
A horizontal force of 40 newtons will just start a 600 newton empty sled moving across packed snow what is the coefficients of static and kinetic friction?
static friction= normal contact force*coefficient of static friction 40 = (600*9.8) * CSF CSF=40/(600*9.8) (you can calculate that yourself, i cant be bothered) there isn't enough info to work out the coefficient of kinetic friction
A solid homogenous sphere rolls without slipping down a plane that makes an angle of 30 degree with the horizontal find the linear acceleration of the sphere and the minimum coefficient of friction?
The linear acceleration of the sphere down the incline can be calculated using the formula (a = g \sin(\theta)), where (g) is the acceleration due to gravity (9.8 m/s(^2)) and (\theta) is the angle of the incline. Substituting the values, we get (a = 9.8 \times \sin(30) = 4.9 , \text{m/s}^2). The minimum coefficient of friction required to prevent slipping can be calculated using the formula (\mu_{\text{min}} = \tan(\theta)), where (\mu_{\text{min}}) is the minimum coefficient of static friction. Substituting the values, we get (\mu_{\text{min}} = \tan(30) \approx 0.577).
What two factors depend on the amount of friction?
gravity and how rough the surface is
How does the coefficient of kinetic friction vary with the the area of contact between the block and he horizontal?
The coefficient of kinetic friction remains constant regardless of the area of contact between the block and the horizontal surface. It is a property of the materials in contact and does not depend on the surface area.
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.
Is force of friction correlated to force of gravity?
It depends. Two surfaces which are pressed together will show a frictional force resisting any sliding. If they are pressed together by gravity (e.g. such as for a book lying on a table), then the frictional force resisting a horizontal push will depend on the weight of the book, which depends on the force of gravity.
Why would friction affect gravity?
Gravitational acceleration is a constant value for a celestial body, and doesn't depend on air resistance/friction. The value on Earth is constant anywhere on Earth, just like the value on Mars is constant anywhere on Mars. In practical,however, this is different. Air resistance lowers the value of gravitational acceleration.
Which graph bet represents the relationship between acceleration due to gravity and mass for objects near the surface of earth?
We could spot the better one in a flash if we could see the graphs. The good one should be a straight horizontal line, since acceleration due to gravity is constant and doesn't depend on mass.
What factor does the limiting value of the force of the static friction depend?
limiting friction is force of friction when a body slides over the surface of another body
Does coefficient of kinetic friction depend on weight?
No, the coefficient of kinetic friction does not depend on weight. It is a property of the surfaces in contact and represents the resistance to motion between them. Weight does not directly affect the coefficient of kinetic friction.
How much force do you need to move a 5kg stone for about 1km?
To move a 5kg stone for 1km, you would need to overcome both the force of friction and the force required to lift the stone against gravity. The force needed would depend on the surface and incline. The total force required can be calculated using the work-energy principle.
What two things does the force of friction depend upon?
The force of friction depends on the nature of the surfaces in contact and the normal force pressing the surfaces together. A rough surface will create more friction compared to a smooth surface, and increasing the normal force pressing the surfaces together will increase the friction force.
Does friction depend on the nature of surface in contact?
Yes it does. That's why skating is a lot more fun on ice than on sandpaper.
How much force is needed to pull a 1330 lb object?
The amount of force needed to pull a 1330 lb object will depend on the surface friction and the angle of the pull. However, the force required to overcome gravity (weight) alone would be approximately 1330 pounds.
