The bar is smooth. The 10-kg slider at A is given a downward velocity of 7.5 m/s.(a) Use c...

The bar is smooth. The 10-kg slider at A is given a downward velocity of 7.5 m/s.

(a) Use conservation of energy to determine whether the slider will reach point D. If it does, what is the magnitude of its velocity at point D?

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(b) What is the magnitude of the normal force the bar exerts on the slider as it passes point B?