A car was travelling west at 120ms when motorist threw an orange out of the window at Velocity of 80ms due south. B) Find the resultant velocity of the orange.

Newtons laws of motion

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