15. What is the moment of inertia of the system of point masses shown about an axis perpendicular to the page and passing through the center of the left side ofthe square? 4003 so cm. rating I. .......... . . . . 5003 3003 15. An object's motion can be described by the velocity-vs-time graph shown below. if the object is at a position x = 5m at time t = 0. where will it be at time t = 5 seconds? i; l 6 4 time 11A 2 kg black is sliding to the right on a frictionless horizontai surface at a speed of 5.00 ms when It Is struck by an object that exerts a large horizontal force on it for a short period of time. The graph below shows the magnitude of this force as a function of time. what is the block's speed just after the force stops acting? FIN} 2500 set} 18. lu'ector A is 3 units long and points 30 degrees below the positive 3: axis. Vector B is 12 units long and points 40 degrees below the negative x axis. What is the magnitude of vector C = A + B