Answer:
- 54 in
Step-by-step explanation:
Use Pythagorean to find the missing side x of the triangle.
<u>It is a hypotenuse with other sides 18 in and half of 15 in:</u>
<u>The perimeter is:</u>
- P = 2*19.5 + 15 = 54
Find the measure of ZRTX.
1 answer:
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Answer:
3200 ft-lb
Step-by-step explanation:
To answer this question, we need to find the force applied by the rope on the bucket at time
At
After seconds, the weight of the bucket is
Since the acceleration of the bucket is the force on the bucket by the rope is equal to the weight of the bucket.
If the upward direction is positive, the displacement after seconds is
Since the well is 80 ft deep, the time to pull out the bucket is
We are now ready to calculate the work done by the rope on the bucket.
Since the displacement and the force are in the same direction, we can write
Use and