object moving from point (4, 0) to point (15, 0), and the y-2 with distance in metres. Determine the of 1000 k mechanical work done. gravity alo the force 8. Justin applies a force at 20 to the horizontal a force th to move a football tackling dummy 8 m force of horizontally. He does 150 J of mechanical accelerati work. What is the magnitude of the force? 17. Chapter oi Determine the interior angles of AABC for A(5, 1), B(4, -7), and C(-1, -8). lies at sea an altitud 10. Consider the parallelogram with vertices smooth (0, 0), (3, 0), (5, 3), and, (2, 3). Find the angles an auton at which the diagonals of the parallelogram a car up intersect. defined 11. The points P(-2, 1), Q(-6, 4), and R(4, 3) are a) Find three vertices of parallelogram PQRS. and a) Find the coordinates of S. tendi b) Find the measures of the interior angles of b) Wha nearest degree. pulli