Referring to Example 212 Suppose the balloon is descending
Chapter 2, Problem 129(choose chapter or problem)
Referring to Example 212 Suppose the balloon is descending with a constant speed of 4.2 m/s when the bag of sand comes loose at a height of 35 m. (a) How long is the bag in the air? (b) What is the speed of the bag when it is 15 m above the ground?
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