|Oct31-07, 03:01 PM||#1|
After hours of thinking I can't solve this problem:
The system of the figure is motionless.Then body 2 is released, arriving to the ground in 2 seconds.
The pulley and the rope have no weight, and there is no friction.
Find the maximum height that is going to be reached by the base of the body 1.
|Oct31-07, 03:13 PM||#2|
Blog Entries: 5
Hi, welcome to PF badbit.
Can the rope shrink or grow? Otherwise, why wouldn't it be 4 meters?
(I'm probably missing something here, what does this have to do with dynamics?)
|Oct31-07, 03:34 PM||#3|
Question is fine, "CompuChip". You need to take a coffee-break. [No pun intended.]
I dunno if the rope can grow, but obviously it can shrink.. or better use, get loose/slack!
But yes, I too have doubts, if this question has got really something to do with dynamics!
Use, 2 sec to find the speed of the bodies when body 2 arrives to the ground. (Note both bodies will have same speed till this moment.) After this the rope goes slack, as body 1 continues to move upwards due to inertia. Now, either apply conservation of energy or same kinematics equations, to obtain the furthr height attained by body1.
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