InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
A stone tied to the end of string 1m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44s, What is the magnitude and direction of acceleration of the ston is ?A. `pi^(2) ms^(-2)` and direction along the tangent to the circleB. `pi^(2) ms^(-2)` and direction along the radius towards the centre.C. `(pi^(2))/(4) ms^(-2)` and direction along the radius towards the centre.D. `pi^(2)ms^(-2)` and direction along the radius away from the centre . |
|
Answer» Correct Answer - B `a_(r)=omega^(2)r=(2 pi n)^(2)r=(2 pi xx (1)/(2))^(2)(1)=pi^(2)` `a_(T)=0implies` option (2) is correct |
|