MIE100H1 Midterm: MIE100H1_20111_621492874205MIE100 Midterm 2

• School: UTSG
• Department: Mechanical and Industrial Engineering
• Course: MIE100H1
• Professor: All

Document Summary

Midterm test, monday, february 28, 2011 6:10 pm- 7:40 pm. At t = 0, a particle is located at = 0 . The particle travels for a short distance on the path. Meters such that its angular velocity is rad/s, where t is in seconds. a) find the time t when the particle is at = 60 . [10 marks] b) find the velocity of the particle at = 60 . Express the result in the polar (r- ) coordinate system shown in the figure. [10 marks] c) express the velocity of the particle at = 60 in normal-tangential (n-t) coordinates. [10 marks] d) find the radial component of the particle"s acceleration, ar, when the particle is at = 60 . A 5 kg block sits on a conical dish that is rotating at a constant rate of 10 rad/s about the vertical axis (figure 2).