#$&*
Phy 201
Your 'cq_1_12.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_12.1_labelMessages **
Masses of 5 kg and 6 kg are suspended from opposite sides of a light frictionless pulley and are released.
What will be the net force on the 2-mass system and what will be the magnitude and direction of its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
Fnet=59N-49N=10N
a=10N/11kg=.9m/s^2
#$&*
If you give the system a push so that at the instant of release the 5 kg object is descending at 1.8 meters / second, what will be the speed and direction of motion of the 5 kg mass 1 second later?
answer/question/discussion: ->->->->->->->->->->->-> :
'dv='dt/a
'dv=1s*.9m/s^2
'dv=.9m/s
.9m/s=vf-(-1.8m/s)
vf=-.9m/s
#$&*
During the first second, are the velocity and acceleration of the system in the same direction or in opposite directions, and does the system slow down or speed up?
answer/question/discussion: ->->->->->->->->->->->-> :
At one second a is positive and velocity is negative because the object is slowing down.
#$&*
*#&!
&#Your work looks very good. Let me know if you have any questions. &#
Why does this analysis stop at the instant of impact with the floor?
Because analysis is no longer uniform.
#$&*
*#&!
&#This looks very good. Let me know if you have any questions. &#