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The coordinates of a moving particle at ...

The coordinates of a moving particle at any time `t` are given by `x = alpha t^(3)` and `y = beta t^(3)`. The speed of the particle at time `t` is given by

A

`3t^(2) sqrt(alpha^(2) + beta^(2))`

B

`t^(2) sqrt(alpha^(2) + beta^(2))`

C

` sqrt(alpha^(2) + beta^(2))`

D

`3t sqrt(alpha^(2) + beta^(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
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