Posted by justin on Monday, October 22, 2012 at 4:56pm.
A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the frame. Find the tension in the wire.

physics help i still dont get it  Elena, Monday, October 22, 2012 at 5:02pm
sinα =2,5/sqrt{2.5²+(43/2)²}
m•g=2•T•sinα
T=m•g/2•sinα

physics help i still dont get it  justin, Monday, October 22, 2012 at 5:07pm
ill try it but i have no idea how you get the angle appreciate it

physics help i still dont get it  Elena, Monday, October 22, 2012 at 5:17pm
sinα =2,5/sqrt{2.5²+(43/2)²} =0.116
m•g=2•T•sinα
T=m•g/2•sinα =52/2•0.116 =225 N

physics help i still dont get it  justin, Monday, October 22, 2012 at 5:21pm
Thank you so much but its just upsetting me i cant figure it out

physics help i still dont get it  justin, Monday, October 22, 2012 at 5:23pm
i forgot to divide the sqrt by 2.5 to get .116 sorry but thank u
Answer This Question
Related Questions
 PHYSICS  1)A picture of width 40 cm weighing 40N hangs from a nail by means of ...
 physics need help bad  A picture of width 43.0 cm, weighing 52.0 N, hangs from ...
 need help  A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by ...
 algebra  A 3 by 5 inch picture is put into frame with a mat that has width x. ...
 Physics  A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two ...
 physics  A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two ...
 Math  The length of a picture is 15cm more than its width. The picture frame ...
 physics  An insulated copper wire is wrapped around an iron nail. The resulting...
 poems  for english class i have to write a poem personifying something. I ...
 personification poem  for english class i have to write a poem personifying ...
More Related Questions