a steel girder weighting 700 lb is hoisted from gund level to the roof of a 70-ft building using a chain that weighs 4lb/running
1 answer:
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Answer:
Explanation:
From the question we are told that:
Height of window
Height of window off the ground
Time to fall and drop
Generally the Newton's equation motion is mathematically given by
Where
Generally the Newton's equation motion is mathematically given by
Where
Therefore the ball’s initial speed