Constraint Equations Homework: v0, v1, v2

AI Thread Summary
The discussion centers on determining the relationship between the velocities v0, v1, and v2 of blocks A, B, and C. It is established that the inextensibility of the string implies that the velocities at both ends must be equal, leading to the conclusion that v1 equals v2. However, confusion arises regarding whether to consider velocities relative to block C or the ground, as different frames yield different results. Clarification is sought on whether the speeds should be measured with respect to the block or the ground, emphasizing the importance of consistent reference frames in solving the problem. The conversation highlights the need for careful consideration of relative motion in physics problems involving multiple objects.
Titan97
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Homework Statement


Block C is moving with a velocity v0 and block A and B are moving with velocities v1 and v2 with respect to block C. Find the relation between v0, v1 and v2
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Homework Equations


none

The Attempt at a Solution


Since the string is in-extensible, its velocity at both ends should be equal. So v1=v2
But should i take the velocity with respect to Earth instead of velocity with respect to block? Both gives me different answers.
 
Last edited:
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Titan97 said:
So v01=v2
Did you mean v1=v2?
What do you think - should it be the speeds relative to the block that are equal or speeds relative to the ground?
 
The string itself has a velocity v0 if A and B are at rest. Then if A acquires a velocity v1, then B should also have a velocity v1.
 

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