InterviewSolution
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InterviewSolution
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(0)(c) - 1/22. A and B are two vectors given by A = 21+ 3j andB=i+. The magnitude of the component ofA along Bis(b) 72(d) 12(c) Ja3. Ifi, j and k represent unit vectors along the x, y andz-axes respectively, then the angle 0 between thevectors î+ ſ + k and î+ſ is equal to(a) sin ') (b) sin(%)(c) cos ) (d) 90°4. A particle moves from position 3i+2j - 6k to14ỉ + 13ſ +9k due to a uniform force of(4 + ſ + 3k)N. If the displacement in m then workdone will be(a) 100 J(b) 200 J(c) 300 J(d) 250 J5. If for two vectors A and B, sum (A + B) isperpendicular to the difference (A - B). The rationof their magnitude is(a) 1(b) 2(d) none of these6. The angle between the vectors A and B is 0. Thevalue of the triple product Ā.(BxA) is(a) A B(b) zero(c) A²B sine(d) A²B cose7. If A x B = B x A, then the angle between A and B is(a)/2(b) n/a(c)3 |
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