Very rusty but ill have a crack

Question 1

when t= 2

x(displacement) = 13.1


since speed = distance/time

and the distance and time are 13.1 and 2 respectably

then speed (velocity) = 13.1/2

velocity = 6.55

I think that may be right, but.... i think its a case of differentiating the first term, i really cant remmeber what to do with natural logs or e's, thats the way its supposed to be done i think

might get a pen and pad out