T1/T2=e^(mu*theta)
where T1/2 are the tensions in the circle
mu is the coefficient of friction
theta is the angle of the circle in contact with the rope.
If the speed is constant, then the group of forces acting on the object is balanced. So the portion of the force acting in the direction of the motion must be equal and opposite to the force of friction.
To find the velocity ratio of a pulley, you must first find the effort and load distances. then you divide the two and there you have you VR (velocity ratio).
No. You use whichever applies: if an object is at rest, you use static friction. If it is moving, you use kinetic friction.
i cant find the answer! I think it is blanced
the net force is 20 newtons because friction always works against direction of motion.
The mechanical advantage that a machine would have without friction or in another term is that you can find the IDEAL MECHANICAL ADVANTAGE (IMA) OF A MACHINE IS BY HAVING A MACHINE WITH NO FRICTION, ALSO BY MULTIPLYING YOUR EFFORT FORCE BY 2, HOWEVER BECAUSE OF FRICTION AND THE WEIGHT THE ACTUAL MA WILL BE LESS.
nope
This coefficient of static friction is needed to find the frictional force between a body and a surface on which body has to move. If u (mu) is the coefficient of friction then uR gives the frictional force between moving body and surface. There is no unit for coefficient of friction. Here R is reaction which equals to the weight of the body
The equation for friction is F=uN. F (friction), u (coefficient of friction), and N (normal). So you first need to solve for the normal by using Newton's second law. Also solve for the x component of the gravity force. Since it is static friction, you know it should be at rest, so that x component force should be the same as the force of friction. Knowing that and the normal, plug it into the equation and solve for u.
the circumference of a circle is the length around the outer edge. and you find it by using the formula 2 times pi times the radius of the circle
The coefficient of friction is the tangent of the angle theta where the angle is measured from horizontal when the mass first starts to slip
In anything that is currently moving. (>>>(car)<) Car moves -> movement of wheels/friction