9. A man is fishing with a 2m long pole and hooks a fish which exerts 150 N of f

Question

9. A man is fishing with a 2m long pole and hooks a fish which exerts 150 N of force at an angle of 65° wrt to the water (see Figure 10.5). Calculate the torque at the man's hand 10. A door is being pulled to the left by a boy who is exerting F,- 120 N and on the other side by his brother who is pulling with a force F, at an angle of 35" wrt the door (see Figure 10.6). What must F, be in order to keep the door from moving? 65° 2 m 352 Figure 10.5 Figure 10.6 has an obiect with mass, m 0.5 kg located 0.5 m from the

Explanation / Answer

10) in order to do so, torque must be zero

F1 - F2 sin 35 degree = 0

F2 = 120/ sin 35 degree

= 209.2 N. answer

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