Asked by Emily
An archer must exert a force of 375 newtons on the bowstring so that the string makes a 35 degree angle with the vertical.
a)find the tension in the bowstring
b)if the applied force is replaced by a stretched spring, and the spring is stretched 30 cm from its unstretched length, what is the spring constant?
a)So far, I have no idea how to start the first problem. Do you use a force diagram or do you use the equation for work?
b) I know how to solve for K, with force of string is equal to -K*delta X. But I need to be able to find the tension before I do that.
Can someone please put me on the right track to solve for the first one?
Thank you!
a)find the tension in the bowstring
b)if the applied force is replaced by a stretched spring, and the spring is stretched 30 cm from its unstretched length, what is the spring constant?
a)So far, I have no idea how to start the first problem. Do you use a force diagram or do you use the equation for work?
b) I know how to solve for K, with force of string is equal to -K*delta X. But I need to be able to find the tension before I do that.
Can someone please put me on the right track to solve for the first one?
Thank you!
Answers
Answered by
MathMate
. T
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F-----
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. T
You need to draw a force diagram that looks like a letter Y,
with tension T on each side of the arrow, and F=applied force = 375 N.
With the known angle of 35°, you can solve for T by resolution into components or by triangle of forces.
.
.
.
F-----
.
.
.
. T
You need to draw a force diagram that looks like a letter Y,
with tension T on each side of the arrow, and F=applied force = 375 N.
With the known angle of 35°, you can solve for T by resolution into components or by triangle of forces.
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