Explanation Assuming that the two planes pass each other after a time Δ t from the take off. Write the expression for total distance the planes travel. Δ x = Δ x 1 + Δ x 2 (I) Here, Δ x is the distance the plane leaves for san Francisco 9497 km away, Δ x 1 is the distance the planes meet from Beijing, and Δ x 2 is the distance the plane from san Francisco to Beijing travel. Write the expression for distance the two planes meet from Beijing. Δ x 1 = v 1 Δ t (II) Here, Δ x 1 is the distance the planes meet from Beijing, v 1 is the speed of the plane from Beijing to san Francisco, and Δ t is the time two planes pass each other. Write the expression for distance the two planes meet from san Francisco. Δ x 2 = v 2 Δ t (III) Here, Δ x 2 is the distance the planes meet from san Francisco, v 1 is the speed of the plane from san Francisco to Beijing, and Δ t is the time two planes pass each other Rearrange the above equation. Δ t = Δ x v 1 + v 2 (IV) Conclusion: Substitute 9497 km for Δ x , 1150 km / h for v 1 , and 687 km / h for v 2 in equation (IV), to find Δ t

4th Edition

ISBN: 9780135272947

Author: Wolfson

Publisher: VST

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Distance and Speed

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Chapter 2, Problem 52P

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The point where the two planes pass each other.

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Chapter 2, Problem 51P

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