Newton's first law of motion categorizes any force affecting the motion as an external force. Friction being an external force, negates its presence as an integral force of a motion. Hence friction cannot be used to observe first law of motion.
newtons laws are idealised and don't involve external forces like friction and air resistance
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Yes because you can relate it to motion,speed,friction,acceleration and newtons three laws
The laws of dynamic friction describe the relationship between the force required to overcome friction between two surfaces in motion and the normal force acting perpendicular to those surfaces. These laws state that the force of friction is proportional to the normal force and is independent of the surface area in contact, while the coefficient of friction relates the force of friction to the normal force.
Friction opposes the motion of an object, which can cause the object to decelerate or come to a stop. This opposes the idea in Newton's 1st Law of Motion, which states that an object will continue in its state of rest or uniform motion unless acted upon by an external force. Friction acts as a force that counters the inertial tendency of an object to remain in motion.
Newton's first law of motion categorizes any force affecting the motion as an external force. Friction being an external force, negates its presence as an integral force of a motion. Hence friction cannot be used to observe first law of motion.
Static friction is the type of friction that makes it difficult to start moving the box. This occurs when there is no relative motion between two surfaces in contact. The force required to overcome static friction and initiate movement is typically higher than the force required to keep an object in motion.
Static friction is typically the most difficult type of friction to overcome because it requires the most force to initiate motion between two surfaces. Once an object is in motion, kinetic friction is usually easier to overcome because the surfaces are already moving relative to each other.
It is difficult to move a cycle with the brakes on because the brakes create friction between the brake pads and the wheel, which resists the motion of the wheel. This friction reduces the efficiency of pedaling and makes it harder to propel the bike forward.
Newton's First Law states, more or less, that if an object is in motion, the "natural thing" for the object to do is to continue moving. Everyday observation, on the other hand, shows that objects that are moving tend to slow down. The discrepancy is simply due to the fact that Newton's First Law assumes that no forces (or no net force, in any case) act on the object. When there is friction, there is indeed a net force.
the net force is 20 newtons because friction always works against direction of motion.
Friction causes object in motion to slow down. As friction increases, it takes more and more energy for an object to keep its inertia (momentum) and it begins to slow down.