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babunello [35]
3 years ago
15

What speed must you toss a ball straight up so that it takes 4 s to return to you? Show your work.

Mathematics
1 answer:
vekshin13 years ago
4 0
1) Type of  motion: constant acceleration.
 
2) acceleration, a = 9.8 m/s^2

3) time up = time down = 4seconds / 2 = 2 seconds

4) formula = Vf = Vo - a*t^2/2

Vf = 0 => Vo = a*t^2 / 2 = 9.8m/s^2 * (2 s)^2 / 2 = 19.6 m/s

Answer: 19.6 m/s
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Answer:

C. 2/3

Step-by-step explanation:

4/6 is equivalent to 2/3 (divide by 2)

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9.99x10 ^-2 + 1.11 × 10^-2 i dont have the same scientific calculator as the one from school. Would like to verify my math is co
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The answer should not depend on which machine or which pencil you use to
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(9.99 of anything) + (1.11 of the same thing) = 11.1 of them

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Can we do any more with that ?

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3 years ago
Suppose you invest $1500 at an Annual interest rate of 5% compounded continuously. How much will you have in the account after 4
aleksklad [387]
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5 0
3 years ago
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lauren is driving to the grocey store.Tye average distance is d,in miles,she travels over t minutes is giving is givin bu the fu
yulyashka [42]

Answer:

Average distance traveled in 15 minutes = 7.5 miles

Step-by-step explanation:

Given function:

d(t)=0.5t

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To find the average distance traveled in t=15 minutes.

Solution:

In order to find the distance traveled in 15 minutes, we will input t=15 in the given function.

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Average distance traveled in 15 minutes = 7.5 miles

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Answer:

True

Step-by-step explanation:

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