An electric lamp is at height of 20 ft above the ground

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

An electric lamp is at height of 20 ft above the ground. An object falls freely under gravity, starting from rest at the same height as the lamp but at a horizontal distance of 5 ft from it. Find the speed of shadow when the object has fallen through 16 ft. (g=32 ft/s2g = 32\,\text{ft/s}^2) object v2=u2+2ghv^2 = u^2 + 2gh

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