A particle travels along a path described by the parabola, y = 0.5x². The x-component of velocity is given by, vx = (7t)ft/s. When t = 0,x=y= 0. Find the particle's distance from the origin and the magnitude of its acceleration when, t = 1s.

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.