velocity

JEE Advanced 2015 Guidance › General Physics questions › velocity

if a rigid body is rotating about an axis passing through the point 2i-j-k and parllel to i-2j+2k with an angular velocity of 3 radians/sec then find the velocity of the point of rigid body whose position vector is 2i+3j-4k
a)-2i+3j+4k
b)2i-3j+4k
c)-2i+3j-4k
d)-2i-3j-4k
ans is a how?

#Physics #General Physics

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6 Answers

9

Celestine preetham ·2009-05-07 08:22:27

v =rX w

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1

vector ·2009-05-07 08:23:30

i did it bt din get answer

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9

Celestine preetham ·2009-05-07 08:28:14

im getting

(2,-3,-4) which is -ve of a !!!

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vector ·2009-05-07 08:29:46

i m getting d same

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9

Celestine preetham ·2009-05-07 08:31:25

thats right ans u r right
key is wrong

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vector ·2009-05-07 08:42:02

kkk thanks

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