Q. An ocean liner leaves New York City and travels 19.2 ° north of east for 186km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the directions (1) due east and (2) due north?
Q. A billiard ball moving at 5.0 m/s strikes a stationary ball of the same mass. After the collisions, the fist ball moves at 4.33 m/s and at an angle of 30 degree with respect to the original line of motion. Assume an elastic collision (and ignoring friction and rotational line of motion), find the struck ball's velocity.