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3 dimension vector problem with displacement.

A cosmic ray plows into Earth's upper atmosphere, liberating a shower of subatomic particles. One of these particles moves downward 3.2 km, then undergoes a collision after which it moves 1.6 km at 27 deg. northward of the vertical. It then undergoes another collision that sends it moving horizontally eastward for 2.1 km before it annihilates with another particle. What is the magnitude of its displacement ?

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Questions are taken from the course book 'Physics with modern physics', Richard Wolfson & J.
M. Pasachoff, pp 60 - 65
A cosmic ray plows into Earth's upper atmosphere, liberating a shower of subatomic particles.
One of these particles moves downward , then undergoes a collision after which it moves
at northward of the vertical. It then undergoes ...

Solution Summary

A three dimensional vector problem with displacement is worked for students. The cosmic ray plows into Earth's upper atmosphere is given.

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