Question

The position of an object moving along x-axis is given by x = a + b * t ^ 2 where a = 8.5m , b = 2.5m * s ^ - 2 and t is measured in seconds. Its velocity at t =0 will be​

Answer 1

Answer:

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Answer 2

distance x = a + b * t ^ 2  

differentiating on both sides

dx/dt = d(a + b * t ^ 2  ) /dt

or v= 0+ 2bt

v = 2bt

v at t= 0 sec will be 0m/s