Hotnework Set 12 Delivering a Package by Air Part B Constants I Periodc Tabl the

Question

Hotnework Set 12 Delivering a Package by Air Part B Constants I Periodc Tabl the package is to land right on the island, at what harizontal distance D trom the plane to the island should the package be releaced? Express the distance eumerically in meters View Available Hn)s Figure 1)A relef arplane is delivering a food package to a group of people stranded on a very small island The island is too small for the plane to land on, and the only way to deliver the package is by crocong , The arplane nies horizontal, vith constant treed of 352 km/hour at an alhtude of 975 m The positive x and y drectons are defined in the figure For al parts, assume that the "eland relers to the point at a distance D trom the point at which the packape is released, as shown in the ure Inore the height ot this point above ea evel Assume that the acceleration due to gravity is 99 80 mn/s X Incorrect; Try Again; 5 attempts remaining Figure 1 of 1 Part C What s dckge when ts the pround Express your anseer numerically in meters per second ew Availiable Hn I: 17

Explanation / Answer

b) t = sqrt [2 s / g]

t = sqrt [2 * 975 / 9.8] = 14.1 s

352 km/hr = 97.78 m/s

D = v t = 97.78 * 14.1

horizontal distance = 1379 m

c) voy = a t = 9.8 * 14.1 = 138.18 m/s

vf = sqrt [97.782 + 138.182]

vf = 169.3 m/s

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