At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is
∑ F = 450 N - (0.75 kg) g = (0.75 kg) a
where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of
a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²
Then its maximum tangential speed v is such that
a = v² / (1.0 m)
⇒ v = √((1.0 m) a) ≈ 25 m/s
ANSWER:
75 emails.
Trey has to answer a total of 75 emails.
STEP-BY-STEP EXPLANATION:
If:
20% of emails = 15
Then:
20% × 5 = 15 × 5
100% of emails = 75
The benefit of starting retirement saving early is that your money that is saved or invested for longer is one that has more time to grow.
<h3>What is the benefit to saving early for retirement?</h3>
The more a person invest and the earlier they start it, the better your retirement savings will be and also one will have a lot of more time and the money will have potential to grow.
Hence, The benefit of starting retirement saving early is that your money that is saved or invested for longer is one that has more time to grow.
Learn more about retirement saving from
brainly.com/question/25707827
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