1 -Three forces are pulling on a point at the origin: 14.22 N at 0°, 4.24 N at 9

ID: 1505908 • Letter: 1

Question

1 -Three forces are pulling on a point at the origin: 14.22 N at 0°, 4.24 N at 90°, and 3.86 N at 217°. Find x component of the resultant force

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2- In this experiment, You calculated that the tension to hold up a traffic light is 2.3 N. You measured 2.53 N. What is the percent error?

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Let A and B reside in the x axis and C in the y axis.

If force A is 30 N, force B is 12 N, and force C is 5 N. What is the x component of the net force?

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1) x-component of net force = 14.22cos0o + 4.24cos90o + 3.86cos217o = 11.14 N (+ve x-axis)

2) % error = [(2.53 - 2.3) / 2.3] * 100 = 10%

3) x-component of net force = A - B = (30 - 12) N = 18 N

4) All angles of an equilateral triangle are equal. Also, sum of all the angles of a triangle is 180o.

So, = 180o/3 = 60o

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