Austin19631 Austin19631
  • 17-05-2023
  • Physics
contestada

For time t > 0, the position of an object moving in the xy-plane is given by the parametric equations x(t)=tcos (t/2) and y(t) = √t2+2t .What is the speed of the object at time t=1?
A)1.155 B)1.319 C)1.339 D)1.810

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