Answer to Question #169020 in Physics for guddu

Question

(1) Write the vector −→A and −→B in terms of unit vectors ˆi and ˆj. [2]

(2) Express −→C , where −→C = 3

−→A − 4

−→B [2]

(3) What is the magnitude and direction of −→C ? [3]

Q8

Show that the force vector −→D = 2ˆi − 4ˆj + ˆk is orthogonal to the force vector −→G = 3ˆi + 4ˆj + 10ˆk. [2]

Answer 1

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