From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 1862/CH11/EX11.2/C11P2.sce | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100755 1862/CH11/EX11.2/C11P2.sce

(limited to '1862/CH11/EX11.2')

diff --git a/1862/CH11/EX11.2/C11P2.sce b/1862/CH11/EX11.2/C11P2.sce
new file mode 100755
index 000000000..b6c8c98d6
--- /dev/null
+++ b/1862/CH11/EX11.2/C11P2.sce
@@ -0,0 +1,41 @@
+
+clear
+ clc
+//to find work done by the chid
+
+// GIVEN::
+
+//refer to figure 11-9(a) from page no. 233
+//mass of sled
+m = 5.6//in kg
+//distance by which sled is pushed horizontally
+s = 12//in meters
+//coefficient of kinetic friction
+mew_k = 0.20
+//angle made by the rope with horizontal
+fi = 45//in degrees
+//acceleration due to gravity
+g = 9.8//in m/s^2
+
+// SOLUTION:
+
+//refer to figure 11-9(b) from page no. 233
+//using newton's second law of motion
+//we get three equations and three unknowns
+A = [cosd(fi) -1 0;sind(fi) 0 1;0 1 -mew_k]
+B = [0; m*g; 0]
+c = A\B
+//force applied by the child
+F = c(1)//in N
+//frictional force 
+f = c(2)//in N
+//normal reaction
+N = c(3)//in N
+//work done by the child
+W = F*s*cosd(fi)//in J
+
+
+F = round(F)
+W = round(W)
+printf ("\n\n Force applied by the child F = \n\n %2i N",F);
+printf ("\n\n Work done by the child W = \n\n %3i J",W);
-- 
cgit