Explain with the help of given problem of block string motion as to which component of velocity should be resolved in such cases. Why?Methods I am confused between :-Let velocity of string is \"u\". Let velocity of block is \"v\" in upwards direction.Method-1Component of velocity of string on each side of block in the direction of motion of block be \"u cos(theta) \".Net summation of components of velocity in direction of motion of block = 2u cos(theta) i.e. { u cos(theta) by both left and right part of string}Ans. v = 2u cos(theta)Method -2Component of velocity of block in the direction of string be \"v cos(theta) \".This implies that u = v cos(theta) .Ans. v = u/( cos(theta))Which of the above methods is correct? Please provide detailed analysis on the concept involved.

Rohan Sachan , 7 Years ago

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