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Safari-File. Edit View History Bookmarks Develop Window Help. # !e * 4) G(47) Mon 12:41 PM Aub rianna Mason a WileyPLUS | | + edugen wileyplus.com/e edugen.wileyplus.com/edugen/student/mainfr.uni C Reader "" Apple Yahoo! Google Maps YouTube Wikipedia News Popular WileyPLUS The drawing shows two planes each dropping an empty fu I need help with my AP Physics homework (Projectile Motio ork Wiley PLUS: MyWileyPLUS | Help | Contact Us | Log out Player WileyPLUS Cutnel, Physics, 10 Cutnell, Physics, 10e COLLEGE PHYSICS-ALGEBRA (PHY181/182) Home Read, Study & Practice Assignment Gradebook ORION week ce Assignment>Open Assignment MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION ·BACK NEXT ASSIGNMENT RESOURCES Chapter 03, Problem 23 HW Chapter 03 Shot 5 PM As preparation for this problem, review Conceptual Example 10 The drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 186 m/s, and each tank is at the same height of 3.28 km above the ground. Although the speeds are the same, the velocities are different at the instant of release, because one plane is flying at an angle of 15.0° above the horizontal and the other is flying at an angle of 15.0° below the Cha te 3. Pr blem 10 Chapter 03, Problem 03plane has the same speed of GO Chapter 03, Problem 13 13 horizontal. Find the (a) magnitude and (b) direction of the velocity with which the fuel tank hits the ground if it is from plane A. Find the (c) magnitude and (d) Chapter 03, Problem 14nkwily ih Chapter 03 Problem 19 Chapter 03, Problem 23 direction of the velocity with which the fuel tank hits the ground if it is from plane B. In each part, give the direction as a positive angle with respect to the horizontal Shot GO 15° Chapter 03, Problem 2Z 03,Problem 40 Chaoter 03, Problem 43 03,Problem 45 Fuel tank Plane A Shot 6 AM Review Sco Review Results by Study Objective Plane B (a) Number Units Ol 21

Explanation / Answer

given,

height = 3.28 km

velocity = 186 m/s

angle = 15 degree

horizontal velocity of the plane will not change as no firce is acting on that direction

vertical velocity after reacing ground for first case

v^2 = u^2 - 2as

0 = (186 * sin(15))^2 - 2 * 9.8 * s

s = 118.239 m

v^2 = 0 + 2 * 9.8 * (3.28 * 10^3 + 118.239)

v = 258.08 m/s

resultant velocity = sqrt(258.08^2 + (186 * sin(15))^2)

resultant velocity = 262.531 m/s

direction = tan^-1(258.08 / (186 * sin(15)))

direction = 79.43 degree

in second case

v^2 = (186 * sin(15))^2 + 2 * 9.8 * (3.28 * 10^3)

v = 258.08 m/s

resultant velocity = sqrt(258.08^2 + (186 * cos(15))^2)

magnitude of resultant velocity = 314.458 m/s

direction = tan^-1(258.08 / (186 * cos(15)))

direction = 55.16 degree

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