A stone of mass m tied to the end of a string revolves in a vertical circle of radius R. The net force at the lowest and highest points of the circle directed vertically downwards are: [ Choose the correct alternative] Lowest Point"" Highest point (a) mg +T_(1)""mg + T_(2) (b) mg +T_(1)""mg - T_(2) (c ) mg + T_(1)- (mv_(1)^(2))//R""mg - T_(2) + (mv_(1)^(2))//R (d) mg -T_(1) -(mv_(1)^(2))//R"" mg + T_(2) + (mv_(1)^(2))//R T_(1) and v_(1) denote the tension and speed at the lowest point. T_(2) and v_(2) denote corresponding values at the highest point.

A stone of mass m tied to the end of a string revolves in a vertical c

1.	A stone of mass m tied to the end of a string revolves in a vertical circle of radius R. The net force at the lowest and highest points of the circle directed vertically downwards are: [ Choose the correct alternative] Lowest Point"" Highest point (a) mg +T_(1)""mg + T_(2) (b) mg +T_(1)""mg - T_(2) (c ) mg + T_(1)- (mv_(1)^(2))//R""mg - T_(2) + (mv_(1)^(2))//R (d) mg -T_(1) -(mv_(1)^(2))//R"" mg + T_(2) + (mv_(1)^(2))//R T_(1) and v_(1) denote the tension and speed at the lowest point. T_(2) and v_(2) denote corresponding values at the highest point.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :Alternative (a) is correct. Note: <a href="https://interviewquestions.tuteehub.com/tag/mg-1095425" style="font-weight:bold;" target="_blank" title="Click to know more about MG">MG</a> + `T_(2) = mv_(2)^(2)`/R, <br/> `T_(1) - mg = mv_(1)^(2)`/R in this <a href="https://interviewquestions.tuteehub.com/tag/example-978283" style="font-weight:bold;" target="_blank" title="Click to know more about EXAMPLE">EXAMPLE</a></body></html>