- #1

Alex Z

- 6

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## Homework Statement

A point charge q1=15.00μC is held fixed in space. From a horizontal distance of 8.00 cm , a small sphere with mass 4.00×10−3kg and charge q2=+2.00μC is fired toward the fixed charge with an initial speed of 40.0 m/s . Gravity can be neglected.

What is the acceleration of the sphere at the instant when its speed is 23.0 m/s?

**2. The attempt at a solution**

I tried to use F = (k*q*q) / (r^2) to find the force of the system, which comes out to be 41.72 N. But when I try to use a = F/m, the answer is apparently wrong.