Question 44
VariationGiven that p ∝ 1/√r and p = 3 when r = 16, find the value of r when p = 3/2
- A.48
- B.64
- C.72
- D.324
Show the answer and explanation
Answer: B (64)
Explanation
p = k/√r: 3 = k/4, so k = 12. Then 3/2 = 12/√r gives √r = 8 and r = 64.
Given that p ∝ 1/√r and p = 3 when r = 16, find the value of r when p = 3/2
Answer: B (64)
p = k/√r: 3 = k/4, so k = 12. Then 3/2 = 12/√r gives √r = 8 and r = 64.