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The position vector of a particle is giv...

The position vector of a particle is given by r = `3t^(2)hati + 4t^(2)hatj + 7hatk` m at a given time 't'. The net displacement of the particle after 10s is

A

500 m

B

400 m

C

300 m

D

700 m

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The correct Answer is:
A
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