1. The problem statement, all variables and given/known data A rocket-powered hockey puck moves on a horizontal frictionless table. Figure EX4.8 at the top of the next column shows graphs of vx and vy, the x- and y-components of the puck's velocity. The puck starts at the origin. a. In which direction is the puck moving at t = 2s? Give your answer as an angle from the x-axis. b. How far from the origin is the puck at t = 5s? The graph of the X-velocity is v=8t cm/s and the Y-velocity is V=30cm/s 2. Relevant equations c^2 = a^2 + b^2 d = vt m= dy/dx 3. The attempt at a solution a. vx = 16 cm/s. vy = 30cm/s. θ = tan (30/16)^-1 = 62^o. Therefore the puck is traveling in the direction of 62^0 from the x-axis. b. vx = 8* 5 = 40cm/s dx = 40*5 = 200cm dy= 30*5 = 150cm c = (4000+2250)^0.5 = 250cm Therefore, the puck is 250 cm from the origin. My question are these: For a I do not need to add the displacement of it, correct? Just the angle is good enough right? In high school there was never a question that did not involve the magnitude of the displacement. Secondly. Is the position traveled from the origin correct as well? I am asking this because I am a bit confused because the position function for x-direction is 4x^2. It shouldn't matter if it is linear or not correct. I can still do it the way I solved it correct? As well for b, I do not need to include the angle because it is asking for the magnitude of the displacement, correct?