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Question 8 has a problem that we all have to be careful about. Since the
velocity is a vector quantity, and mathematically we consider negative
quantities to be less than positive quantities, none of the answers are
mathematically correct.
However, if one argues that a negative velocity IS
NOT 'less' than a positive velocity, just in a different direction,
.... The question SHOULD have asked about the speed of the ball
to eliminate this confusion.