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An object moves at constant speed along ...

An object moves at constant speed along a cicular path in a horizontal xy plane. With the centre as origin.when the object is at x= -2m , it s velocity is ` -4hatj`m/s , its acceleration when it is at y= 2 m/s

A

` -8 hati m//s^(2)`

B

`-2hatj m//s`

C

`-8 hatj m//s^(2) `

D

`2 hatj m//s^(2)`

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • A particle moving along a straight line has a velocity v m s^(-1) , when it cleared a distance of x m. These two are connected by the relation v = sqrt (49 + x) . When its velocity is 1 m s^(-1) , its acceleration is

    A
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    B
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    C
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    D
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