A student swings his book bag in a vertical circle of radius 0.5 m. Calculate the minimum speed of the book bag in order to "just" negotiate the top of the circle.

for i will definitly keep him in my prayers. may god bles you and your

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have an amazing day

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)