A player bounces a 0.46 kg soccer ball off her head, changing the velocity of the ball from i = (8.7 m/s) + (-3.7 m/s) to f = (5.1 m/s) + (4.2 m/s). The ball is in contact with the player's head for 6.7 ms.
Could someone explain what multiplication comparisons are? An example of the problem is: Northview bought 6 computers Southview bought 2 computers Using multiplication, compare the number of computers the two schools bought. Express the comparison 2 ways. Please help