Simple Harmonic Motion 4 Question 7
7. The mass $M$ shown in the figure oscillates in simple harmonic motion with amplitude $A$. The amplitude of the point $P$ is
(2009)
(a) $\frac{k _1 A}{k _2}$
(b) $\frac{k _2 A}{k _1}$
(c) $\frac{k _1 A}{k _1+k _2}$
(d) $\frac{k _2 A}{k _1+k _2}$
Show Answer
Answer:
Correct Answer: 7. (d)
Solution:
- $x _1+x _2=A$ and $k _1 x _1=k _2 x _2$ or $\frac{x _1}{x _2}=\frac{k _2}{k _1}$
Solving these equations, we get $x _1=\frac{k _2}{k _1+k _2} A$
