| Two blocks A and B of same mass are attached by a thin inextensible string through an ideal pulley. Initially block B is held in position as shown m figure. Now the block B is released. Block A will slide to right angle hit the pulley in time \[~{{t}_{A}}.\] Block B will swing and hit the surface in time \[{{t}_{B}}.\] Assume the surface as frictionless. |
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A) \[{{t}_{A}}={{t}_{B}}\]
B) \[{{t}_{A}}<{{t}_{B}}\]
C) \[{{t}_{A}}>{{t}_{B}}\]
D) Data are not sufficient to get relationship between \[{{t}_{A}}\]and \[{{t}_{B}}\]
Correct Answer: B
Solution :
\[T\sin \theta <T\] \[\therefore {{t}_{A}}<{{t}_{B}}\]
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