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Amanda [17]
3 years ago
12

A 5.20 bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 70.0. If the bucket starts

from rest, what is the minimum time required to raise the bucket a vertical distance of 12.5 without breaking the cord?
Mathematics
1 answer:
kondaur [170]3 years ago
8 0
The force being exerted by the cord is m(a+g) if the bucket is being accelerated upward.

If T = 70 N, then <span>a=70N/5.2kg−9.8m/<span>s2</span>=3.66m/<span>s2</span></span>is the maximum acceleration that it could have.
 
Starting from rest, <span>Δy = 1/2a<span>t2</span>→ t = </span>√2Δy/a = <span>√</span>2∗12.5/3.66 = 2.61s
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