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A 4.80-kg bucket of water is accelerated upward by a cord
Chapter 7, Problem 33E(choose chapter or problem)
A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 75.0 N. If the bucket starts from rest, what is the minimum time required to raise the bucket a vertical distance of 12.0 m without breaking the cord?
Questions & Answers
QUESTION:
A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 75.0 N. If the bucket starts from rest, what is the minimum time required to raise the bucket a vertical distance of 12.0 m without breaking the cord?
ANSWER:Solution to 33E Step 1 Here, Mass of bucket=4.8kg Weight of the bucket=mg W=4.8x9.8 W=47.04N Now the breaking force of the rope is 75N. The maximum acceleration the rope can withstand is a a=(Breaking force-weight)/mass a=(75-47.04)/4.8 a=5.285m/s 2