(___________) Which of the following statements is false. (a) There is always no
ID: 2076568 • Letter: #
Question
(___________) Which of the following statements is false. (a) There is always nonzero angular velocity, v_theta (b) There is always nonzero radial velocity, v_r (c) Angular velocity v_theta has a maximum at theta = 90 degree. (d) The sum v vector_r + v vector_theta does not change at any theta. (e) None of the above. (__________) Which of the following statements is true about the motion at theta = 90 degree. (a) The angular acceleration, a_theta = 0. (b) The radial acceleration, a_r = 0. (c) r = 0. (d) theta = 0. (e) None of the above.Explanation / Answer
Q.No. 6
All the statements are true. Hence the correct option is (e).
Q.No. 7
At 90o angular velocity is maximum, i.e. constant. Thus angular acceleration is zero.
Hence the correct option is (a)
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