four billard balls .each of mass 0.5kg are all are travling in the same direction on a billiard table ,with speed of 2m/s ,4m/s .8m/s and 10 m/s .what is the linear momentum of this system

Answersystem;

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