Two masses of 10 kg and 20 kg are connected by a massless spring as shown in the figure. A varying force acts on the 20 kg mass at the instant when the 10 kg mass has an acceleration of 
towards right. By considering the situation, choose the incorrect pair of varying force and acceleration of the 20 kg mass due to this varying force.
A
When 
B
When 
C
When 
D
When 
Text Solution
Verified by ExpertsThe correct answer is:
C
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