(Solved): Question 5: In Position 1 on the smooth bar, the 5-kg collar has a downward velocity of \( 1.5 \mat ...

Question 5: In Position 1 on the smooth bar, the 5-kg collar has a downward velocity of \( 1.5 \mathrm{~m} / \mathrm{s} \) and the spring is unstretched. The spring constant is \( \mathrm{k}=100 \mathrm{~N} / \mathrm{m} \). What maximum downward velocity does the collar attain as it falls? Hint: how do you find a mathematically find a maximum (or minimum)?