What is the initial acceleration of the mass if it is released and allowed to move? Express your answer to two significant figures and include the appropriate units

Respuesta :

Answer:

a=0.47 m/s^2

Explanation:

Assuming  

Two 1.3 kg masses are 1.1 m apart (center to center) on a friction less table. Each has + 9.1 μC of charge

Q=Q1=Q2=9.1 uC

From Coloumb's law ,The electric force on one of the masses is given by

[tex]F=KQ^2/r^2 =(9\times10^9)(9.1\times10^{-6})^2/1.12[/tex]

F=0.616 N =0.62 N (approx)

Initial acceleration of the mass

a=F/m =0.62/1.3

a=0.47 m/s^2