Q5. You are drawing water from a well. The speed at which you pull the bucket out is 0.5 m/s. It takes 5 seconds to pull out the bucket. What is the length of the rope? (Assume that no part of the rope is hanging out when you start pulling the rope) need explanation
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Answer:
(m/2 + m) gh
Step-by-step explanation:
the bucket you pull is 0.5 m/s but it takes you 5 seconds to pull. We will use uniform mass.
So, it will be at a distance h/2 from the bottom.
Work done = Change in PE of bucket+Change in PE of rope
W=Mgh+mg
2
h
=(M+
2
m
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