Reason : Once the motion has started, the inertia of rest has been overcome. View Solution A : In the presence of air resistance, if the ball is thrown vertically upwards then time of ascent is less than the tim
The direction of friction is always opposite that of motion, parallel to the surface between objects, and perpendicular to the normal force. For example, if the crate you try to push (with a force parallel to the floor) has a mass of 100 kg, then the normal force would be equal to ...
Friction always acts in ... (same direction as/opposite direction to) motion. View Solution Static friction is more than sliding friction. View Solution "The dynamic friction is a little less than the limiting friction ". Why ? View Solution Assertion...
Friction is the force that opposes the motion when two surfaces in contact move or tend to move with respect to each other. It always acts opposite to the direction of motion, thus it is an opposing force. Answer and Explanation:1
Friction is defined as a force resisting the motion of two materials relative to each other. It is generated when one object, fluid, or material is moved relative to another one and always acts in the opposite direction of the motion. Friction is necessary for some actions but presents a ba...
is the mechanical resistance to the relative movement of two surfaces. Thefrictional forceon each body is in an opposite direcrion to themotionof the other body. Since no surface is perfectly smooth, all having at least a minute roughness, there will always be friction, no matter how small ...
Fnorm acts to support the object and is perpendicular to the interface. In this case, since the tube is on a level ground, the Fnorm is equal to and opposite the force of gravity, which is mg. Therefore, if you know the combined mass of you with the tube, and the coefficient of ...
A value of zero would mean no friction at all, an exclusive property – even levitation vehicles have drag. Rubber in contact with other surfaces can yield COFs from 1 to 2. Occasionally, it is maintained that μ is always less than 1, but this is not true. While in most relevant ...
As soon as any motion occurs at a macroscopic interface, a transition from stick to slip takes place, either sharp [446,447] or smooth [448,449], and models need to incorporate a friction law accordingly. The most classical and widely known friction law is the one of Amontons-Coulomb (AC...
What is Friction? Friction is a force that two surfaces exert on each other when they rub against each other. The direction of the friction force is always OPPOSITE to the direction of the motion. Direction of Motion Friction Force Direction of Intended Movement Types of Friction Static Friction...