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If vec(P) = (k,2,3) and vec(Q) = (0,3,k)...

If `vec(P) = (k,2,3) and vec(Q) = (0,3,k) and vec(P) bot vec(Q)` , then find the value of k .

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`vec(P) bot vec(Q) rArr vec(P) . vec(Q) = 0 `
` :. (k,2,3).(0,3,k) = 0 `
` :. 0+6 +3k = 0 `
` :. 3k = -6`
` :. k = -2 `
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KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - C Objective Questions (VSQs)
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  2. If vec(A) = (2,-3,1) and vec(B) = (3,4,n) are mutually perpendicular t...

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  3. If vec(P) = (k,2,3) and vec(Q) = (0,3,k) and vec(P) bot vec(Q) , then ...

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  8. Define 1 eV:

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  9. Does potential energy of a spring decrease/increase when it is compres...

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  11. What is the work done on the body moving in uniform circular motion ?

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  16. Obtain an equation of momentum in terms of mass and kinetic energy .

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  17. Mention the dimensional formula of spring constant .

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