Question

Use the following information for questions 12 - 14 Three charges are located as follows 12. What is the force exerted by g2 on qh (i.e. what is F2om)? 2onl (a) 3.5 x 103Ni - 2.6 x 10-3N) (b) 1.2 x 10-2Ni - 2.7 x 10-2Nj (c) 4.1 x 103Nî - 1.4 x 10-3Nj (d) 1.0 x 10-2Nî - 3.4 x 10-3Nj (e) 4.1 x 10-3Ni- 3.4 x 10-3Nj 13. What is the net force on qi due to both other charges (i.e. what is net onl (a) 8.2 x 10-3N (b) 6.9 x 103Ni (c) -5.2 x 10-3Nj (d) -2.7 x 10-3Nj (e) 1.4 x 102Ni 4.7 x 10-3Nj 14. Suppose that there were masses m1 3kg, m2-4kg, and m3-4kg at ri, r2, and r3 respectively instead of charges at those locations. What would the direction of the acceleration of the 3kg mass be? (a) In the same direction as the force in question ?? (b) In the opposite direction as the force in question ?? (c) Perpendicular to the force in question?? (d) The 3kg mass is in equilibrium and does not accelerate (e) There is not enough information to answer this question

Answer 1

The direction of F2 on 1 changes(flips) as the gravitational force is attractive. So Fnet is along +y