A particle is moving along the x- axis with its coordinate with time 't' given by . Another particle is moving along the y-axis with its coordinate as a function of time given by At s, the speed of the second particle measured in the frame of the first particle is given by . Then (in m/s) is ____________.
Option: 1 580
Option: 2 700
Option: 3 100
Option: 4 300
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