The position of a particle is given by the equation of motion s(t)= 1/(1+t)where t is in sec and s in meters find the velocity.

Answer 1

v = ds / dt = s´(t) = 1/ ( 1 + t ) ^ 2

Answer 2

would the velocity be the same after 2 seconds and would the speed at 2 seconds = be 9 feet/sec

Answer 3

velocity(0)=1
velocity(2)=1/9 m/s
No, and No to your answers.