19. The velocities of a sphere before and after impact are (-10i + 4j – 3k) and (-i -j+ Ak) respectively. Given that the sphere is deflected through a right angle, the value of A is A 2 B 1 C - D -2

19. The velocities of a sphere before and after impact are (-10i + 4j – 3k) and (-i -j+ Ak) respectively. Given that the sphere is deflected through a right angle, the value of A is A 2 B 1 C - D -2

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter15: Origin Of The Solar System And Extrasolar Planets

Section: Chapter Questions

Problem 8P

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Question

19. The velocities of a sphere before and after impact are
(-10i + 4j – 3k) and (-i -j+ Ak) respectively.
Given that the sphere is deflected through a right angle,
the value of A is
A 2
B 1
C
--1
D -2

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