Asked by Aya
Two people Simultaneously kick the same soccer ball, each with a force of 10. N. One force is directed 45 degrees N of E, the other 30 degrees S of E. What are the magnitude and direction of the resultant of their forces?
I know that for one of them the angle is 30 degrees and one of the legs is 10N. How do I find the Resultant? What formula do I use. Also, the other angel with 45 degrees and a leg measuring 10 N, how do I find the resultant for that? What formula do I use.
I know that for one of them the angle is 30 degrees and one of the legs is 10N. How do I find the Resultant? What formula do I use. Also, the other angel with 45 degrees and a leg measuring 10 N, how do I find the resultant for that? What formula do I use.
Answers
Answered by
Henry
Fr = 10N[45o] + 10N[330]
X = 10*Cos45 + 10*Cos330 = 15.73 m/s.
Y = 10*sin45 + 10*sin330 = 2.071 m/s.
Tan A = Y/X = 2.071/15.73 = 0.13166
A = 7.50o.
Fr = X/Cos A = 15.73/Cos7.50 = 15.9 N. @
7.50o.
X = 10*Cos45 + 10*Cos330 = 15.73 m/s.
Y = 10*sin45 + 10*sin330 = 2.071 m/s.
Tan A = Y/X = 2.071/15.73 = 0.13166
A = 7.50o.
Fr = X/Cos A = 15.73/Cos7.50 = 15.9 N. @
7.50o.
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