Question

Velocity

Answer 1

The displacement (in meters) of a particle moving in a straight line is given by \[\large s = t^2 − 6t + 18\] where t is measured in seconds.
Find the instantaneous velocity when t=4

Answer 2

i think you need to differentiate s
then plug t=4 in the new equation

Answer 3

Yup, thank you! :D

Answer 4

;p .. i knew it! i know you already know this

Answer 5

Kind of forgot, need to refresh. :)

Answer 6

aahh, i see