What is the magnitude of the charge?

[shashaeee]

Two 1.0g beads are charged equally and placed 50cm apart. When released, they begin to accelerate at 150m/s². What is the magnitude of the charge on each bead?

The equations I used:

F = ma
F = kQQ / r²

I was just wondering about the mass. Do I have to use the total mass (2.0g) for both beads or just the 1.0g?

 

[PeterO]

Two 1.0g beads are charged equally and placed 50cm apart. When released, they begin to accelerate at 150m/s². What is the magnitude of the charge on each bead?

The equations I used:

F = ma
F = kQQ / r²

I was just wondering about the mass. Do I have to use the total mass (2.0g) for both beads or just the 1.0g?

have a careful think about what object(s) the force(s) act on and the mass of the object(s).