From c68da8c7a359d3195b4bbc06410784f88e41c75b Mon Sep 17 00:00:00 2001
From: Sathish Kumar RK <rksathish09@gmail.com>
Date: Thu, 20 Feb 2020 19:05:45 +0000
Subject: [PATCH] fix sign error

---
 src/3_drude_model_solutions.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/3_drude_model_solutions.md b/src/3_drude_model_solutions.md
index 6b992012..8238cd79 100644
--- a/src/3_drude_model_solutions.md
+++ b/src/3_drude_model_solutions.md
@@ -74,7 +74,7 @@ $$
 $$
 
 $$
-\frac{dv_y}{dt} = \frac{eBv_x}{m} + \frac{eE}{m}
+\frac{dv_y}{dt} = \frac{eBv_x}{m} - \frac{eE}{m}
 $$
 
 Repeat steps followed in 2. to compute x(t) and y(t) after which the particle motion is given by,
-- 
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