Grade 11Trigonometry
a paritvle moves 14m along vector 6i+2j+3k then 7m along 3i-2j+6k. Total displacement is?
a paritvle moves 14m along vector 6i+2j+3k then 7m along 3i-2j+6k. Total displacement is?
2 Answers
Aditya Gupta
Approved Tutor Answer7 Years agoNote that magnitudes of 3i-2j+6k and 6i+2j+3k are both 7
so displacement is given by:
14*( 6i+2j+3k)/7+7*(3i-2j+6k)/7
=12i+4j+6k+3i-2j+6k
=15i+2j+12k
Shreekant Sharma
Note that magnitudes of 3i-2j+6k and 6i+2j+3k are both 7
so displacement is given by:
14*( 6i+2j+3k)/7+7*(3i-2j+6k)/7
=12i+4j+6k+3i-2j+6k
=15i+2j+12k
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