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If your pulling 30 lb tire on a lawn what is the estimated weight youre actually pulling because of friction?
the equation for static friction coefficient is:
static friction coefficient = force required to break bond / weight of object (tire)
you need the friction coefficient between rubber and grass, say its 0.5, this means the force you have to apply to equal the friction force is:
0.5 = x / 30
x = 0.5 * 30
x = 15 lbs f
anything greater than 15 lbs f will break the bond and accelerate the tire.
notes :
1 / moving friction coefficient is usually less than static friction coefficient, so youve less drag once its moving.
2 / friction coefficients are never greater than 1.0
actually , some friction coefficients do exceed 1.0 , see Google / friction coefficients table
What else can I help you with?
When you pull a sled through the snow why does only part of your force do work?
Answer 1 - This is because of friction. Answer 2- This is because the force you exert must be in the same direction as the objects motion. So the part pulling forward does work, when the force pulling upward does not.
Hail falls to the ground because of the force of?
gravity pulling it down. When water droplets in a cloud are carried upward due to strong air currents, they freeze into ice pellets. As they become heavier, they eventually fall to the ground as hail.
Suppose the force of friction on a sliding object is 25 N The force needed to maintain a constant velocity is?
100 N===========================Answer #2:That depends on the direction of the pulling force.The horizontal component of the pulling force must be 100 N.So the more steeply the rope angles upward, the harder you'dhave to pull on it in order to create a 100N horizontal component.
What happens you hit the coin at the bottom?
Friction is a sticky force that appears when 2 objects rub against each other. If you push or pull slowly friction helps pull or push the tower along with the bottom coin. If you push or pull quickly, the coins still rub, but the friction force doesn't have time to get the stack moving. So the coin shoots out without pulling the tower with it.
The friction force that acts on objects that are at rest is?
If an object is stationary on a surface then the forces acting on it are the Gravitational force and the Normal force(the force of the surface pushing back against the object). Technically you could be pulling(or pushing) that object from opposite directions with equal forces and it would remain stationary. The important thing to understand is that a stationary object remains stationary so long as the net forces applied to it equal zero.
Pulling a suit case is very tough than pulling a suit case with wheels Why?
because rolling friction is less than static friction.
What do you mean by force of friction?
Think of a heavy box lying on the ground with a rope attached for pulling. Until you try to pull the box it doesn't actually resist you. Once you start pulling on the rope, and even if you are unable to move the box, it is as if there is a force pulling against you. This is the force of friction. The friction between the box and the ground sets up this force.
What would result in greater friction riding a sled down a snowy slope or pulling it across a sidewalk?
Pulling the sled across a sidewalk would result in greater friction because concrete surfaces typically have more roughness compared to snow-covered slopes. Snow offers less resistance and allows the sled to glide more easily.
When an object is pulling across a level surface at a constant velocity what force is the pulling force equal to?
When an object is moving across a level surface at a constant velocity, the pulling force is equal to the force of friction acting in the opposite direction. This force of friction is equal in magnitude and opposite in direction to the pulling force, resulting in a balanced situation where there is no acceleration.
What force that caused by the pushing or pulling action of magnets?
friction
Why Can't we pick up apples with out friction?
Friction is necessary to grip the apple firmly enough in our hands to pick it up. Without friction, the apple would slip out of our grasp because there would be no force to counteract the weight of the apple pulling it downwards.
Why is it harder to push something than to pull it?
Pushing requires overcoming static friction, which is usually stronger than kinetic friction (encountered when pulling). When pushing an object, you are initially having to overcome this static friction, making it feel harder. When pulling, you are already in motion so only kinetic friction needs to be overcome.
In terms of friction why does a car use more petrol when it has a load on its roof?
It uses more petrol because of air resistance. Friction pulling the load on the roof which causes the car to use more petrol because of the weight it needs more energy to move around.
Are two pencils actually pulling on each other?
No, two pencils are not actually pulling on each other. The force of gravity between the two pencils is negligible due to their relatively small masses. Any perceived interaction between the pencils is a result of external forces acting on them, such as friction or air resistance, rather than a gravitational pull between the pencils themselves.
How is friction a problem?
Friction can be considered a problem because it always pulls in the opposite direction of the intended direction of motion. For example, if you were pulling a box, friction would be pulling it the other way (which is why you encounter resistance and can't just make the box slide). If you wanted to make your car go the fastest that it could, you would need to reduce the friction acting on the car. Keep in mind though, that friction is also the force that prevents the car from sliding. Ice is frictionless, which obviously can produce some disastrous results if you're driving on it.
What f can transfer energy by pushing and pulling?
Use the Force luke.
What way does the friction act if you're pulling a nail out of the block of wood?
Friction acts in the opposite direction of the pulling force you exert on the nail. As you try to pull the nail out of the wood block, friction between the nail and the wood acts in the direction that opposes the motion, making it harder to pull the nail out.
