- #1

member 392791

## Homework Statement

An insulating rod having linear

charge density l 5 40.0 mC/m and

linear mass density m 5 0.100 kg/m is

released from rest in a uniform electric

field E 5 100 V/m directed perpendicular

to the rod (Fig. P25.9). (a) Determine

the speed of the rod after it has

traveled 2.00 m. (b) What If? How does

your answer to part (a) change if the

electric field is not perpendicular to the rod? Explain.

## Homework Equations

## The Attempt at a Solution

I solved part A and got .4 m/s, but I don;t understand conceptually part b. if the rod is not perpendicular to the electric field, why would its motion behave exactly as if it was perpendicular?