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Alja [10]
3 years ago
13

A football is thrown toward a receiver with an initial speed of 15.4 m/s at an angle of 36.2 ◦ above the horizontal. At that ins

tant, the receiver is 15.8 m from the quarterback. The acceleration of gravity is 9.81 m/s 2 . With what constant speed should the receiver run to catch the football at the level at which it was thrown? Answer in units of m/s
Business
1 answer:
Serhud [2]3 years ago
6 0

Answer:

vr = 3.906 m/s

Explanation:

vi = 15.4 m/s

∅ = 36.2º

d = 15.8 m

g = 9.81 m/s²

vr = ?

We have to get Xmax = R as follows

R = vi²*Sin (2∅) / g

⇒ R = (15.4 m/s)²*Sin (2*36.2º) / (9.81 m/s²)

⇒ R = 23.0437 m

then we can get t applying the equation

R = vi*Cos ∅*t    ⇒   t = R / (vi*Cos ∅)

⇒   t = (23.0437 m) / (15.4 m/s*Cos 36.2º) = 1.85 s

Now, we find the distance that the receiver must be run

x = R - d

⇒  x = 23.0437 m - 15.8 m = 7.2437 m

Finally, we get the speed

vr = x / t

⇒  vr = 7.2437 m / 1.85 s = 3.906 m/s

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Answer:

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2) Sanchez Company uses the indirect method for the Operating Activities section of the cash flow statement. What amount related to the sale would be added or subtracted in the computation of Net Cash Flows from Operating Activities?

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book value = $9,800 - $1,020 = $8,780

cash received = book value - loss = $8,780 - $2,800 = $5,980

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Answer:

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