Point A is located at ( 9i+3j+4k)m, point B is located at ( 6i-7j+2k)m. The force on a thin wire...

Question

Point A is located at ( 9i+3j+4k)m, point B is located at ( 6i-7j+2k)m. The force on a thin wire from A to B is 500 Ib. What are the magnitude of the force parallel and Perpendicular to an axis line that starts at the origin and goes to the point C ( -2i+7j+3k)m ?

Robert · Accepted Answer

A = 9i+3j+4k 
B= 6i-7j+2k 
   ⃗⃗⃗⃗  ⃗= -3i-10j-2k = B-A 
Similarly vector   ⃗⃗⃗⃗  ⃗ = -21+7j+3k 
Unit vectors 0f 
   ⃗⃗⃗⃗  ⃗=> (-3i-10j-2k)/(113)0.5 
   ⃗⃗⃗⃗  ⃗= > (-2i+7j+3k)/(62)0.

Point A is located at ( 9i+3j+4k)m, point B is located at ( 6i-7j+2k)m. The force on a thin wire from A to B is 500 Ib. What are the magnitude of the force parallel and Perpendicular to an axis line...

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