If s=3t^2+4t+9 find velocity at t=2sec. Also find average velocity between 1sec and 4sec
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Velocity at t=2sec is 16m/s. You just need to differentiate the distance equation with respect to time which will give you–> v=6t+4 and now just substitute the value of time that is 2 sec and this will give 16m/s.