aneen alrooh
12-03-2010, 21:15
السلام عليكم ،،
أخواني عندي مجموعة واجبات يجب علي تسليمها للدكتور غداً
استصعب علي سؤالين وماعرفت لهم حل
أرجوا من الي عنده اجابة يفيدنا والله يجزاكم خير ،،
وهذي الأسئلة ..
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Q86: : A sandbag that is dropped from an ascending balloon that is 300 m above the ground and is ascending at 10 m s-1 .
a) What is the maximum height of the sandbag?
b) Find the position and the velocity of the sandbag after 5 s?
c) How long does it take for the sandbag to reach the ground from the time it was dropped?
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Q90: A rock is dropped into a well and a splash is heard 3 s later. If the sound travels in air at 344 m s-1 , how deep is the well?
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أخواني عندي مجموعة واجبات يجب علي تسليمها للدكتور غداً
استصعب علي سؤالين وماعرفت لهم حل
أرجوا من الي عنده اجابة يفيدنا والله يجزاكم خير ،،
وهذي الأسئلة ..
-------------------------------------------------------------------------------------------------------
Q86: : A sandbag that is dropped from an ascending balloon that is 300 m above the ground and is ascending at 10 m s-1 .
a) What is the maximum height of the sandbag?
b) Find the position and the velocity of the sandbag after 5 s?
c) How long does it take for the sandbag to reach the ground from the time it was dropped?
--------------------------------------------------------------------------------------------------------
Q90: A rock is dropped into a well and a splash is heard 3 s later. If the sound travels in air at 344 m s-1 , how deep is the well?
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