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Kitty [74]
3 years ago
8

A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His

teammate catches it 3.5s later, at a height above the ground of 5 ft. Determine the value of v, rounded to the nearest whole number.
Mathematics
2 answers:
Elena-2011 [213]3 years ago
7 0

Answer:

v=5.42m/s

Step-by-Step Explanation:

We can use conservation of energy to solve this  

mgh=1/2mv^2

2gh=v^2

v=sqrt(2gh)

v=sqrt[2*9.8m/s^2*(6.5-5)]

v=5.42m/s

bonufazy [111]3 years ago
6 0

Answer:

i used a google calculator

v=5.42m/s

Step-by-step explanation:


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Answer:

The value of the angle x is 48°.

Step-by-step explanation:

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\tanx =\frac{11}{10}=1.1

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The value of the angle x to the nearest degree is 48°.

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At a recent marathon, spectators lined the street near the starting line to cheer for the runners. The crowd lined up 5 feet dee
masha68 [24]

Answer:

29568 people cheered for the runners at the start of the race

Step-by-step explanation:

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First, Convert 1 mile to feet

1 mile = 5280 feet

Hence, the length of the rectangle is 5280 feet and the width is 5 feet.

Now, we will determine how many 5 feet by 5 feet square we can get from the 5280 feet by 5 feet rectangle. To do that, we will divide 5280 feet by 5 feet

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Hence, from the rectangle, we can get 1056 5 feet by 5 feet square.

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14 × 1056 = 14784 people

This is the amount of people that will comfortably fit in the crowed lined up 5 feet deep on one side of the street for the first mile.

Since the crowd lined up on both sides of the street, then

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