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The position vector of a particle is giv...

The position vector of a particle is given by `vecr=(3t^(2)hati+4t^(2)hatj+7hatk)m` at a given time `t`.The net displacement of the particle after `10 s` is

A

`500 m`

B

`400 m`

C

`300 m`

D

`700 m`

Text Solution

Verified by Experts

The correct Answer is:
A
At `t=0,vecr_(1)=7veck`
At `t=10,vec r_(2)=300veci+400vecj+7veck,vecs=vecr_(2)-vecr_(1)`
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