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If vec(P)=2hat(i)+3hat(j)-4hat(k) and ve...

If `vec(P)=2hat(i)+3hat(j)-4hat(k)` and `vec(Q)=5hat(i)+2hat(j)+4hat(k)`. Find the angle between the two vectors.

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • If vec(P)=2hat(i)+3hat(j)-4hat(k)andvec(Q)=5hat(i)+2hat(j)+4hat(k) . Find the angle between the two vectors.

    A
    `30^(@)`
    B
    `45^(@)`
    C
    `60^(@)`
    D
    `90^(@)`

  • If vec(F)= 3hat(i) + 4hat(j) + 5hat(k) and vec(S) = 6hat(i) + 2hat(j) + 5hat(k) , find the work done by the force

    A
    51 units
    B
    20 units
    C
    30 units
    D
    41 units

  • If vec(F)= hat(i) + 2hat(j) + hat(k) and vec(V)= 4hat(i)- hat(j) + 7hat(k) find vec(F).vec(V)

    A
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    B
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    C
    13W
    D
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