Posted by emma on Sunday, May 6, 2012 at 4:54am.
A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end.
Part a) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 24.0 N .
Part b) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 43.0 N .
part c)Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 82.0 N .

physics please help !  Elena, Sunday, May 6, 2012 at 5:19am
m•g = 65 N, m1•g =24 N, m2•g =23 N, m3•g =82 N
Tthe force that the table exerts on the box is the normal reaction
(a) N =m•g –T1 = m•g –m1•g =
= 65 – 24 = 41 N,
(b) N =m•g –T2 = m•g –m2•g =
= 65 – 43 = 22 N,
(c) N =0.
The box is moving at the acceleration
a = g•(m3m)/(m3+m)

physics please help !  tiffany, Friday, October 19, 2012 at 11:23am
this is 13
Answer This Question
Related Questions
 physics  A box weighing 69 N rests on a table. A rope tied to the box runs ...
 Physics  A box weighing 136. N rests on a table. A rope tied to the box runs ...
 physics please !  A box weighing 65.0 N rests on a table. A rope tied to the ...
 Physics  I have a question 26. A box weighing 85 N rests on a table. A rope ...
 Physics  The diagram for this problem is a pulley. On the left end Box 1 is ...
 physics  The drawing shows box 1 resting on a table, with box 2 resting on top ...
 physics  The drawing shows box 1 resting on a table, with box 2 resting on top ...
 general physics  The drawing shows box 1 resting on a table, with box 2 ...
 physic 1  The drawing shows box 1 resting on a table, with box 2 resting on top...
 Physics  A massless rope passes over a massless, frictionless pulley. One end ...
More Related Questions