1 34 The position vector 7 of a moving particle at tim after the start of the motion is given by 7 5 20 t E 95 10 t 5t j At the

Question

1 34 The position vector 7 of a moving particle at tim after the start of the motion is given by 7 5 20 t E 95 10 t 5t j At the t T the particle is moving at ri angles to its initial direction of motion Find the value of Ta the distance of the particle from its initial position at this tim Ans 5s 125m sl idw endo endo en sout

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