College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 35

In football practice, two wide receivers run different pass receiving patterns. One with a mass of 80.0 kg runs at 45° northeast at a speed of 5.00 m/s. The second receiver (mass of 90.0 kg) runs straight down the field (due east) at 6.00 m/s. (a) What is the direction of their total momentum: (1) exactly northeast, (2) to the north of northeast, (3) exactly east, or (4) to the east of northeast (b) Justify your answer in part (a) by actually computing their total momentum.