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23 Nov 2019
this is from my physics homework and I just want to know how toproceed.
A 20kg box is pulled 4.5m up an incline by a rope with a tension of150Nt. The incline makes a 30 degree angle above the horizontal.There is a kinetic friction force of 30Nt.
I need to find the work done by each force on the box
Find the net work on the box
if the box starts from rest, what is the speed of the box aftertraveling 4.5m.
I just did a problem like this but it was on flat ground, with arope pulling up at 36 degrees (and 53 degrees later on). Can theproblem be set up the same way or does the inclined plane nowresult in work in the 4 direction.
this is from my physics homework and I just want to know how toproceed.
A 20kg box is pulled 4.5m up an incline by a rope with a tension of150Nt. The incline makes a 30 degree angle above the horizontal.There is a kinetic friction force of 30Nt.
I need to find the work done by each force on the box
Find the net work on the box
if the box starts from rest, what is the speed of the box aftertraveling 4.5m.
I just did a problem like this but it was on flat ground, with arope pulling up at 36 degrees (and 53 degrees later on). Can theproblem be set up the same way or does the inclined plane nowresult in work in the 4 direction.
