Shear is a sideways force. Friction is drag - from any direction.
no
inertia
Starting or "sticky" friction is large than sliding friction.
static friction is the friction between two bodies they are in contact. And another sliding over the other. Kinetic friction is the friction between two bodies they are rolling .And that force is opposite to the rolling angle
Static electricity has electricity and friction makes heat and slows things down.
No. Friction is a measurable force observed between two objects sliding/rolling along each others surface. Shear is the act of cutting. The process of friction could shear something. Think glaciers.
The difference between a positive shear and a negative shear is the direction the image is distorted into
no
For rock, the basic friction angle is somewhat less than residual angle. The basic friction strength is that shear resiatance of two smooth surfaces. The residual shear atrength is that for two rough surfaces after long shearing. At residual state, the shear resistance almost keeps constant and no shear-dilation.
Gravity, friction lacks the shear power that gravity has and wouldn't stand a chance.
inertia
The difference between a positive shear and a negative shear is the direction the beam is distorted into. A force that tends to shear the left portion of the beam upward with respect to the right portion is said to produce a positive shearing force.
it speeds up and speeds down
Starting or "sticky" friction is large than sliding friction.
Rolling friction generates considerably less heat than sliding friction. .
∅=45°+ α- β∅=shear angleα= rake angleβ= friction angle
static friction is the friction between two bodies they are in contact. And another sliding over the other. Kinetic friction is the friction between two bodies they are rolling .And that force is opposite to the rolling angle