A ball of mass is thrown vertically upward with a speed of from the edge of a building.

PHYSICS · Multi-part · CBSE · Physics · Gravitation · Gravitation

Problem

A ball of mass 200 g200\,\text{g} is thrown vertically upward with a speed of 12 m s−112\,\text{m}\,\text{s}^{-1} from the edge of a building. (i) Calculate the maximum height reached above the point of projection. (ii) Determine its speed when it returns to the level of projection. (Take g=9.8 m s−2g = 9.8\,\text{m}\,\text{s}^{-2}.)

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