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A particle of mass 0.2 kg is moving with...

A particle of mass 0.2 kg is moving with linear velocity `(i-j+2k)`. If the radius vector `r=4i+j-k`, the angular momentum of the particle is

A

2.14 units

B

`sqrt(4.28)` units

C

`sqrt(107)` units

D

5 units

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The correct Answer is:
B
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AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE - 2
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  3. A particle of mass 0.2 kg is moving with linear velocity (i-j+2k). If ...

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  5. A force of - F hat(k) acts on O, the origin of the coordinate system. ...

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  6. The adjacent sides of a parallelogram are vec(P)=2i-3j+k and vec(Q)=-2...

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  7. What is the condition for the vectors 2i+3j-4k and 3i-aj+bk to be para...

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  8. a, b are the magnitudes of vectors vec(a) & vec(b). If vec(a)xx vec(b)...

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  9. If vec(A)=4N, vec(B)=3N the value of |vec(A)xx vec(B)|^(2)+|vec(A).vec...

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  10. If vec(A)=2hat(i)+3hat(j)+6hat(k) and vec(B)=3hat(i)-6hat(j)+2hat(k) t...

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