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A particle is moving in the x-y plane. A...

A particle is moving in the x-y plane. At certain instant of time, the components of its velocity and acceleration are as follows: `v_(x)=3ms^(-1), v_(y)=4ms^(-1), a_(x)=2ms^(-2) and a_(y)=1ms^(-2)`. The rate of change of speed at this moment is

A

`sqrt(10)m//s^(2)`

B

`4m//s^(2)`

C

`10 m//s^(2)`

D

`2 m//s^(2)`

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The correct Answer is:
D
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