Two balls of clay, with masses m1 = 0.49 kg and m2 = 0.47 kg, are thrown at each other and stick when they collide. mass 1 has a velocity v1 = 3.2i m/s and mass 2 has a velocity of v2 = 1.6j m/s. part (a) write an expression for the initial momentum of the system. p, in terms of the masses m1 and m2, the magnitudes of the velocities vi and v2, and the unit vectors i and j part (b) find the horizontal component of the final velocity vx, in meters per second, after the collision δ 33% part (c) find the vertical component of the final velocity vy, in meters per second, after the collision

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?