Question

M is directly proportional to r 2squared when r =2 m=14

Answer 1

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The given relationship can be depicted as :

• 
  `M \propto r {}^(2)`

• 
  `M = k \: {r}^(2)`

where, k is the proportionality constant.

now, let's plug the value of M and r to find the value of proportionality constant .

• 
  `14 = k * {2}^(2)`

• 
  `14 = k * 4`

• 
  `k = 14 / 4`

• 
  `k = 3.5`