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A particle is moving with constant veloc...

A particle is moving with constant velocity `(6hati+8hatj)m//s`. It corosses x-axis at point `(2,0)`. The rate of separation from origin at this moment is :

A

`6ms^(-1)`

B

`8ms^(-1)`

C

`10ms^(-1)`

D

`7ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A

A particle is …………
Rate of seperation at any instant is determined by the component of velocity which is along the line joining the two refrence points. Here x-axis is the line of seperation and hance, rate of seperation `= v_(x) = 6 m//s`.
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