#$&*
PHY 241
Your 'cq_1_02.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
The problem:
A ball starts with velocity 4 cm/sec and ends with a velocity of 10 cm/sec.
What is your best guess about the ball's average velocity?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
v_1 = 4 cm/s
v_2 = 10 cm/s
V_avg = delta(s)/delta(t)
or in this case
v_avg = (v_1 + v_2) / 2
#$&*
Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
because v_avg = (v_1 + v_2) / 2 I averaged an average. The real equation is V_avg = delta(s)/delta(t)
#$&*
If it takes 3 seconds to get from the first velocity to the second, then what is your best guess about how far it traveled during that time?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
t=3 s
v_avg = 7 cm/s
distance traveled = v_avg * t = 21 cm
#$&*
At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
a= (v_2 - v_1) / t
(10cm/s - 4 cm/s) / 3 s = 2 cm/s^2
#$&*
*#&!*#&!
&#Your work looks very good. Let me know if you have any questions. &#
#$&*
PHY 241
Your 'cq_1_02.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
The problem:
A ball starts with velocity 4 cm/sec and ends with a velocity of 10 cm/sec.
What is your best guess about the ball's average velocity?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
v_1 = 4 cm/s
v_2 = 10 cm/s
V_avg = delta(s)/delta(t)
or in this case
v_avg = (v_1 + v_2) / 2
#$&*
Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
because v_avg = (v_1 + v_2) / 2 I averaged an average. The real equation is V_avg = delta(s)/delta(t)
#$&*
If it takes 3 seconds to get from the first velocity to the second, then what is your best guess about how far it traveled during that time?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
t=3 s
v_avg = 7 cm/s
distance traveled = v_avg * t = 21 cm
#$&*
At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
a= (v_2 - v_1) / t
(10cm/s - 4 cm/s) / 3 s = 2 cm/s^2
#$&*
*#&!*#&!
&#Your work looks very good. Let me know if you have any questions. &#