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The position vector of a moving particle...

The position vector of a moving particle is given by `vec(r ) = 3 hat(i) + 4t^(2) hat(j) - t^(3) hat(k) m`

A

It starts from x= +3m

B

Displacement from t= 1s to 3s is `32 hat(j) - 26 hat(k)`

C

Velocity component along x- axis at t=2s is zero

D

Acceleration of particle is along (-Z) axis only

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The correct Answer is:
A, B, C
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