diff options
Diffstat (limited to '3845/CH2/EX2.12/Ex2_12.sce')
| -rw-r--r-- | 3845/CH2/EX2.12/Ex2_12.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/3845/CH2/EX2.12/Ex2_12.sce b/3845/CH2/EX2.12/Ex2_12.sce new file mode 100644 index 000000000..4520d37cc --- /dev/null +++ b/3845/CH2/EX2.12/Ex2_12.sce @@ -0,0 +1,18 @@ +//Example 2.12
+a_dry=-7;//Acceleration on dry concrete (m/s^2)
+a_wet=-5;//Acceleration on wet concrete (m/s^2)
+v_0=30;//Initial velocity (m/s)
+v=0;//Final velocity (m/s)
+x_0=0;//Initial position (m)
+x_dry=(v^2-v_0^2)/(2*a_dry)+x_0;//Distance to stop on dry concrete (m)
+printf('a.Distance to stop on dry concrete = %0.1f m',x_dry)
+x_wet=(v^2-v_0^2)/(2*a_wet)+x_0;//Distance to stop on wet concrete (m)
+printf('\nb.Distance to stop on wet concrete = %0.1f m',x_wet)
+t_reaction=0.5;//Reaction time (s)
+x_0_reaction=0;//Initial position at the time of traffic light turning red (m)
+x_reaction=x_0_reaction+v_0*t_reaction;//Distance travelled during reaction time (m)
+//Total stopping distance = x_dry(or x_wet)+x_reaction
+printf('\nc.Distance to stop on dry concrete from the time the traffic light turns red = %0.1f m',x_dry+x_reaction)
+printf('\n Distance to stop on wet concrete from the time the traffic light turns red = %0.1f m',x_wet+x_reaction)
+//Openstax - College Physics
+//Download for free at http://cnx.org/content/col11406/latest
|