NEET2017Physics-Laws of Motion
NEET 2017 Physics Free Body Diagrams MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively:
A
g, g/3
B
g/3, g
C
g, g
D
g/3, g/3
Correct Answer
Option B
Detailed Explanation
When the string is cut, block A will experience the full gravitational acceleration g, while block B will experience an acceleration of g/3 due to the mass ratio.
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