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diff --git a/172/CH5/EX5.1/ex1.sce b/172/CH5/EX5.1/ex1.sce
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+//example 1
+//calculating height
+clear
+clc
+m=1100 //mass of car in kg
+ke=400 //kinetic energy of car in kJ
+V=(2*ke*1000/m)^0.5 //velocity of car in m/s
+g=9.807 //acc. due to gravity in m/s^2
+H=ke*1000/(m*g) //height to which the car  should be lifted so that its potential energy equals its kinetic energy
+disp('hence,the car should be raised to a height of 37.1 m to make its potential energy equal to kinetic energy')
+\ No newline at end of file