9. Find the instantaneous velocity of the particle described in Figure P2.1 at the following times:
(a)t = 1.0 s, (b)t = 3.0 s, (c)t = 4.5 s, and (d)t = 7.5 s. calculate

Ithink it’s: light bounce if off a mirror

So since the snail is moving at 3.6  miles per hour you multiply by 5280 to change it into feet per hour. so you get 36*528 ft per hour. since there are 3600 seconds in an hour, you divide 36*528 by 3600. so simplifying we get 528/100 which is 5.28 ft per second

20hope i helep

To find speed, or mph, use distance/time.