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A particle moves along the curve y=x²/2. Here x varies with time as x=t²/2.Where x and y are measured in metres and t in second. At t=2s the velocity of the particle is:
(a)2 i - 4 j b) 2i + 4 j c) 4i +2j d) 4i - 2j

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4 Answers

samagra Kr ·2011-06-02 00:46:42

B)
find dx/dt and dy/dt

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Abhishek Das ·2011-06-02 01:36:08

but it is coming 2i+2j!!!!!1

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chinmaya ·2011-06-02 02:06:28

so,B is the right answer

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Abhishek Das ·2011-06-02 07:38:34

Thanx........

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