After t seconds the displacement, s(t), of a particle moving rightward along the t axis is given (in feet) by s(t)=t² +6. Find its instantaneous velocity when t = 2 1. instant. vel. = 6ft/sec 2tft/sec 2ft/sec 1ft/sec 2. instant, vel. 3. instant. vel. 4. instant, vel. S C 5. instant, vel. == 4ft/sec

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