Question
Question: A light rope passes over a pulley. One section of the rope is held by a child and the other section ...
A light rope passes over a pulley. One section of the rope is held by a child and the other section by a man, then
A
The man and the child have same vector acceleration.
B
The man and the child have same magnitude of
acceleration but in opposite direction.
C
The man and the child have different magnitude of
acceleration.
D
The man and the child have accelerations which keep on interchanging with each other.
Answer
The man and the child have same magnitude of
acceleration but in opposite direction.
Explanation
Solution
Consider the man and the child to be simple masses hung from two ends of a string passing over pulley. Being a system, the man and child both have same magnitude of acceleration but opposite directions.