diff options
Diffstat (limited to '1205/CH13/EX13.5/S_13_5.sce')
| -rw-r--r-- | 1205/CH13/EX13.5/S_13_5.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/1205/CH13/EX13.5/S_13_5.sce b/1205/CH13/EX13.5/S_13_5.sce new file mode 100644 index 000000000..ff607aec3 --- /dev/null +++ b/1205/CH13/EX13.5/S_13_5.sce @@ -0,0 +1,29 @@ +clc;
+mD=300;//kg, mass of dumbwaiter and load
+mC=400;//kg counterweight
+// Uniform motion
+g=9.81;//m/s^2, acceleration due to gravity
+vD=2.5;//m/s, speed of dumbwaiter
+//Free body c
+//apply sum(Fy)=0
+T=mC*g/2;//N
+//Free body D
+//sum(Fy)=0
+F=mD*g-T;//N
+power=F*vD;//W
+
+printf("Power delieverd when dumbwaiter is moving with constant speed of 2.5 m/s is %.0f W\n",power);
+
+//Accelerated motion
+aD=1;//m/s^2 acceleration of dumbwaiter
+aC=-1/2*aD;//m/s^2 acceleration of counterweight
+//Free body c
+//apply sum(Fy)=0
+T=mC*(g+aC)/2;//N
+//Free body D
+//sum(Fy)=0
+F=mD*(g+aD)-T;//N
+power=F*vD;//W
+printf("Power delieverd when dumbwaiter is moving with acceleration 1 m/s^2 and having instataneous velocity 2.5 m/s is %.0f W\n",power);
+
+printf("In book answers are rounded off");
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