14.205 Dynamics
Spring 2013
Quiz 1
Time: 8:00 AM 8:50 AM
Date: Friday, 02/15
Name:
1. A car moves along a straight line and its position is described by
s(t) = 2t2 + 1
(m)
(1)
Determine the time, t when the velocity of the car reaches 25 m/sec.
(25%)
Figu
14.205 Dynamics
Spring 2013
Quiz 2
Time: 8:00 AM 8:50 AM
Date: Friday, 03/22
Name:
1. In Figure 1, the hoop is cast on the rough surface such that it has an
angular velocity = 4 rad/s and an angular acceleration = 5 rad/s2 .
Also, its center has a velocit
14.205 Dynamics
Spring 2013
Quiz 2
Time: 8:00 AM 8:50 AM
Date: Friday, 04/12
Name:
1. In Figure 1, the bar has a mass m and length l. If it is released from
rest from position = 45 , determine its angular acceleration and the
horizontal and vertical compo