Asked by al
A constant force -6i-2j-1k moves an object along a straight line from point (8, -6, -9) to point (-5, 3, 3).
how do you find the work done
how do you find the work done
Answers
Answered by
drwls
Take the scalar "dot" product of the force vector and the displacement vector. The displacement vector is
-13i +9j +12k
(-13)*(-6) + 9*(-2) + 12*(-1)
= ?
-13i +9j +12k
(-13)*(-6) + 9*(-2) + 12*(-1)
= ?
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