A solid ball of mass m is made to fall from a height H on a pan suspended through a spring of spring constant K as shown in figure. If the ball does not rebound and the pan is massless, then amplitude of oscillation is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
velocity before collision = 
pan is massless so velocity after collision
= 
by energy conservation
mg(x) + 
m 
= 
Kx 2
Kx 2 – 2mgx – 2mgH = 0
x = 
+ 
at equilibrium Kx 0 = mg ⇒ x 0 = mg/K
mean Amplitude = x – x 0 = 
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