rolled-up - definition. What is rolled-up
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%ما هو (من)٪ 1 - تعريف

TYPE OF MOTION THAT COMBINES ROTATION AND TRANSLATION OF AN OBJECT WITH RESPECT TO A SURFACE WITH WHICH IT IS IN CONTACT
Rolled
  • animated GIF version]].
  • superposition]] of two motions: translation with respect to the surface, and rotation around its own axis.

rolled-up      
1.
Rolled-up objects have been folded or wrapped into a cylindrical shape.
...a rolled-up newspaper.
ADJ: ADJ n
2.
Rolled-up sleeves or trouser legs have been made shorter by being folded over at the lower edge.
...an open-necked shirt, with rolled-up sleeves.
ADJ: ADJ n
roll up         
WIKIMEDIA DISAMBIGUATION PAGE
Roll up; Roll-up (disambiguation); Roll Up (song); Roll Up
v.
1) (d; tr.) to roll up in (to roll smt. up in a blanket)
2) (D; intr., tr.) to roll up into (to roll up smt. into a ball)
3) (D; intr., tr.) to roll up to (the ball rolled up to me)
roll-up         
WIKIMEDIA DISAMBIGUATION PAGE
Roll up; Roll-up (disambiguation); Roll Up (song); Roll Up
¦ noun
1. (chiefly N. Amer. also roll-your-own) Brit. informal a hand-rolled cigarette.
2. Austral. informal an assembly.
¦ adjective Finance denoting an investment fund in which returns are reinvested and tax liabilities can be reduced.

ويكيبيديا

Rolling

Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact with each other without sliding.

Rolling where there is no sliding is referred to as pure rolling. By definition, there is no sliding when there is a frame of reference in which all points of contact on the rolling object have the same velocity as their counterparts on the surface on which the object rolls; in particular, for a frame of reference in which the rolling plane is at rest (see animation), the instantaneous velocity of all the points of contact (e.g., a generating line segment of a cylinder) of the rolling object is zero.

In practice, due to small deformations near the contact area, some sliding and energy dissipation occurs. Nevertheless, the resulting rolling resistance is much lower than sliding friction, and thus, rolling objects, typically require much less energy to be moved than sliding ones. As a result, such objects will more easily move, if they experience a force with a component along the surface, for instance gravity on a tilted surface, wind, pushing, pulling, or torque from an engine. Unlike cylindrical axially symmetric objects, the rolling motion of a cone is such that while rolling on a flat surface, its center of gravity performs a circular motion, rather than a linear motion. Rolling objects are not necessarily axially-symmetrical. Two well known non-axially-symmetrical rollers are the Reuleaux triangle and the Meissner bodies. The oloid and the sphericon are members of a special family of developable rollers that develop their entire surface when rolling down a flat plane. Objects with corners, such as dice, roll by successive rotations about the edge or corner which is in contact with the surface. The construction of a specific surface allows even a perfect square wheel to roll with its centroid at constant height above a reference plane.

أمثلة من مجموعة نصية لـ٪ 1
1. Obama has rolled up a big margin in caucus states.
2. He peeled off his jacket and rolled up his sleeves.
3. Clearing brush on your ranch with rolled–up flannel sleeves?
4. Electronic newspapers that can be rolled up and constantly updated.
5. Battery packs contain cells of rolled up metal strips.