- #1
erisedk
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Homework Statement
Two identical balls are interconnected with a massless and inextensible thread. The system is in gravity free space with the thread just taut. Each ball is imparted a velocity v, one towards the other ball and the other perpendicular to the first, at t=0. Then,
(A)The thread will become taut at t=L/v
(B)the thread will become taut at some time t<(L/v)
(C)The thread will always remain taut for t>(L/v)
(D)The kinetic energy of the system will always remain mv^2.
The correct options are (A) and (C).
Homework Equations
m1u1 + m2u2 = m1v1 + m2v2
KE= 1/2 mv^2
The Attempt at a Solution
There is no collision! How do I even start?