Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc., is recovered when the pressure is removed
A vector quantity can be represented graphically by a directed line segment, symbolized by an arrow pointing in the direction of the vector quantity, with the length of the segment representing the magnitude of the vector.
solid (vi) Volume (V) of the given solid- Sl. Initial Reading Final Reading Volume of Solid No. of water meniscus, V, water meniscus, V₂ V= V₂ - V₁ (mL) (mL) (mL) 1. 2. 3. 4. g g = mL = mL = g Mean value of volume of solids V (mL)
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