in the service producing sector
<span>Imagine the rope tied to a hook on the ceiling. And then attach a weight to the rope. You have your situation exactly as described. The tension is equal all along the rope and will be the amount of the weight of the rope plus the weight of your load. You may ignore the weight of the rope if it is small compared to the load. If you are considering a horizontal suspension then the result is still the same at any point on the rope. The rope conforms to a curve known as a Catenary. Which is a class of curves that are all hyperbolic. If you have the formula for the curve you can figure out the forces. and they will all be uniform along the suspending cable. Look up Catenary</span>
Here are the answers for the given units above. In order to get the answer, we need to simplify the values.
1. 20 miles in 5 hours, that would be option a. 4 miles/hour.
2. 42 gals in 7 minutes, that would be option a. 6 gals/minute.
3. 144 feet in 3 secs, that would be option d. 48 feet/second.
Hope these answers help.
Explanation:
When two bodies in contact with one another without any slipping ,and the points in contact move along different paths, tangential acceleration will be same for both the bodies because there is no slip but their normal will be different because they move in different paths.
Answer:
III. A baseball is traveling at 38 m/s when it hits a wall and bounces away from the wall at -38 m/s
Explanation:
The change in momentum of the baseball is a function of its change in velocity. And can be shown mathematically as;
∆p = m (∆v)
Where ∆p change in momentum
m mass of baseball
∆v change in velocity
Which implies that the higher the change in velocity of the baseball the higher the change in momentum.
I) ∆v = 38 - 0 = 38m/s
II) ∆v = 0 - 38 = -38m/s
III) ∆v = -38-38 = -76m/s
Therefore the third event have the highest change in velocity and thus have the highest change in momentum.