1. Three masses are located in the vertices of an equilateral triangle. Calculate the magnitude and direction of the gravitational force on the mass m,. Given: m, = 38 kg, m 3= 340 kg, m, = 340 kg, r = 38 m. G = 6.674x10-11 N m2/kg?. m1 %3D m2 m3 2. Three masses are located in the corners of an equilateral triangle. Find the magnitude and direction of the gravitational field at the center of the triangle. Given: m, = 22 kg, m: = 30 kg, m, = 30 kg, r= 12 cm. G = 6.674x10-11 N-m2/kg?. %3D %3D %3D m2 m3 3. Four masses are at the vertices of a square. Find the magnitude of the gravitational force on the mass m,. Given: m, = 6 kg, m: = 80 kg, m, = 80 kg, ma = 80 kg r = 24 m. G = 6.674x10-11N-m2/kg?. m, %3D !! %3D m2 4. Four masses are located in the corners of a square. Calculate the magnitude and direction of the gravitational a field at the center of the square. Given: m, = 85 kg, m2 = 3 kg, m; = 3 kg, m4 = 85 kg r = 8 m, G = 6.674x10-11 N-m?/kg?. 5. Two masses m, = 350 kg and m2 = 350 kg are at a distance of 22 m from each other. Find the magnitude and direction of the gravitational field at point A. Data: h = 9 m, G = 6.674x10-11 N-m/kg. ma m3 !3! m1 m2