An electronic roller makes 960 turns in 20 seconds

Mathematics

1 answer:

Luba_88 [7]2 years ago

5 0

48 turns a second, and 2,880 turns a minute.

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For this case we have the following equation:
h (t) = - 12t2 + 36t
When the object hits the ground we have:
- 12t2 + 36t = 0
We look for the roots of the polynomial:
t1 = 0
t2 = 3
Therefore, the time it takes the object to hit the ground is:
t = 3 s
Answer:
the time when the object hits the ground is:
t = 3 s

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Answer:

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