AP EAMCET · PHYSICS · Work Power Energy
A mass of falls from a height of and lands on a mass less platform supported by a spring having spring constant as shown in the figure. The maximum compression of the spring is.
(acceleration due to gravity ) 
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
In case of maximum compression, total mechanical energy will be conserved. TE1=TE2 Assuming dotted line to be reference for gravitational potential energy. ⇒mgh+0=mg-x+12kx2 ⇒1×10×1=1×10×-x+12×15×x2⇒3x2-4x-4=0⇒x=2 m
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