Answer:
<em>Final velocity, v = 21.75 m/s</em>
Step-by-step explanation:
Given that the relation between final velocity, initial velocity, acceleration and distance traveled is expressed as:

Also, given that:
Initial velocity, u = 9 m/s
Acceleration, a = 7 m/
Distance, s = 28 m
To find:
Final velocity, v = ?
Solution:
The given relation between v, u, a and s is:

We have the values of initial velocity, acceleration and distance traveled in the question statement. We just need to put all these values to find the value of final velocity.
Let us put all the values in the given equation and try to find final velocity, v:

So, the answer is:
<em>final velocity, v = 21.75 m/s</em>
......................................................
The ratio of 6 yards to 9 feet is 1/2 but I can't see where the missing value is
Based on the given parameters about old cone, the height of the new cone is 12 inches
<h3>Equivalent ratio</h3>
Old cone:
- Radius, r = 2 inches
- Height, h = 6 inches
New cone:
- Radius, r = 4 inches
- Height, h = h
equate ratio of radius to height in old and new cone
2 : 6 = 4 : h
2/6 = 4/h
cross product
2 × h = 6 × 4
2h = 24
h = 24/2
h = 12 inches
Learn more about ratio:
brainly.com/question/2328454
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