A traffic signal light is suspended by two cables.
UNDER WHAT CONDITION WILL THE TENSION IN EACH CABLE BE EQUAL TO THE WEIGHT OF THE TRAFFIC SIGNAL LIGHT?
2006-12-29 12:36:15 · 7 answers · asked by inthemaking 2 in Science & Mathematics ➔ Physics
What if it were possible?... There's no upward force. Does it need to be in translational equilibrium?
2006-12-29 12:46:15 · update #1
Oh, so their weight being equal to one another means they're in equilibrium then? What kind?
2006-12-29 12:50:08 · update #2
But Mr. Mikey, the traffic signal light IS suspended by the two cables.
2006-12-29 12:52:09 · update #3
When the lenghts of the cables are equal and are inclined at an angle of 30 degree to the horizontal 0r at an angle of 60 degree to the vertical.
If T is the tension in a cable, its vertical component is T cos 60 = 0.5 T. The the sum of the two upward forces is T which balances the weight of the signal light.
The horizontal forces cancel each other.
2006-12-29 12:51:09 · answer #1 · answered by Pearlsawme 7 · 0⤊ 0⤋
Could it be when the signal is located midway between the two supports and the wires are at an angle of 30 degrees (from the support to the traffic light is 30 degrees below horizontal)
2006-12-29 20:40:19 · answer #2 · answered by bkc99xx 6 · 1⤊ 0⤋
When the entire system is accelerating upwards, since in the situation you described the net force on the traffic signal light is not zero, and it points upwards. Therefore, there will be an upwards acceleration.
2006-12-29 20:42:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It will be equal if the cables are massless and the traffic light is hung from one cable then the second cable used to suspend the first cable.
2006-12-29 20:50:01 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Equalibrium occurs when all the forces in a system cancel out to give zero. You know when the forces equal zero if there is no motion, or if the object the forces are acting on is moving at a constant velocity.
2006-12-29 20:46:23 · answer #5 · answered by serpent 2 · 0⤊ 0⤋
Seems not possible since no matter what the weight will somehow be distributed between the two cables.... If there is wind then it is possible.
2006-12-29 20:40:47 · answer #6 · answered by Fil D 3 · 0⤊ 0⤋
Under the condition of weightlessness (i.e. in space).
2006-12-29 20:41:19 · answer #7 · answered by Anonymous · 0⤊ 0⤋