Physics

Problem

+4\,\mu\text{C}

charge is placed at the origin. Two identical

+3\,\mu\text{C}

charges are fixed at

A(0.40\,\text{m},0)

and

B(0,0.30\,\text{m})

in the

XY

-plane. Calculate the magnitude of the net electrostatic force acting on the charge at the origin. a)

1.88\,\text{N}

1.38\,\text{N}

1.20\,\text{N}

0.86\,\text{N}