1. A quarterback takes the ball from the line of scrimmage, runs backward for 4 yards, and then runs sideways parallel to the line of scrimmage for 13 yards. At this point, he throws a 34 yard forward pass straight down the field. What is the magnitude of the football's resultant displacement? 2. A shell is fired from the ground with an initial speed of 1.56 multiplied by 103 m/s at an initial angle of 40° to the horizontal.
(a) Neglecting air resistance, find the shell's horizontal range.
m
(b) Find the amount of time the shell is in motion.
s