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23 Nov 2019
Box slips down incline.
The box:
-40kg
-V initial = 0.30m/s
-Acc. = 5m/s^2
-Moves length of 7m down slope
The slope
-35deg with respect to horizontal
(kinetic friction exists betw. Box & slope)
i) When the box gets to the bot. of slope, what is its kin.Enrgy?
ii) With respect to the box, what work is done on it by fric.Force?
iii) with respect to the box, what is magn. of the fric. Forceacting on it?
iv) with respect to box and slope, what is µ of kin. Force?
v) with respect to box, what amount of work is done on it by grav.Force?
vi) Calc. the chnge in grav. Potential enrgy of the erth-boxsystm
Box slips down incline.
The box:
-40kg
-V initial = 0.30m/s
-Acc. = 5m/s^2
-Moves length of 7m down slope
The slope
-35deg with respect to horizontal
(kinetic friction exists betw. Box & slope)
i) When the box gets to the bot. of slope, what is its kin.Enrgy?
ii) With respect to the box, what work is done on it by fric.Force?
iii) with respect to the box, what is magn. of the fric. Forceacting on it?
iv) with respect to box and slope, what is µ of kin. Force?
v) with respect to box, what amount of work is done on it by grav.Force?
vi) Calc. the chnge in grav. Potential enrgy of the erth-boxsystm
Jean KeelingLv2
29 Jun 2019
