Problema Solution
y varies jointly as j and v^2. When j=4 and v=4, y=128. Find y when j is 7 and v is 6
Answer provided by our tutors
y varies jointly as j and v^2 means:
y = K*(j*v^2), where K is constant
When j=4 and v=4, y=128 or:
128 = K*(4*4^2)
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click here to see the equation solved for K
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K = 2
The questions for y is:
y = 2j*v^2
For j = 7 and v=6 we find:
y = 2*7*6^2
y = 504