An airplane flies horizontally at a height of h = 7840 m and with a speed of 720 km/h. A package is released from the plane which then hits the ground and explodes. Find the approximate time it takes for the package to reach the ground.

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section6.3: Relative Velocity
Problem 27PP
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An airplane flies horizontally at a height of h = 7840 m and with a speed of 720 km/h. A package is released from the plane which then hits the ground and explodes. Find the approximate time it takes for the package to reach the ground.

Select one:


a. 40s
b. 20s
c. 30s
d. 10s

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