A person whose mass is m = 58.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle a = 33.3° with the horizontal. What is the reading on the scale? reading:
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- A person whose mass is m = 104.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle a = 33.7° with the horizontal. What is the reading on the scale? reading: kgA person who mass is m=72.0kg steps onto a mechanical bathroom scale on an incline at an angle of 28.1deg with the horizontal. What is the reading on the scale?Nizwa College of Technology, Engg Dept Final Examination 8. With reference to Figure, which force has a Y component of -6.93 N? F=20 N F- 10 N (a) FA 150° 30 (b) Fв 60 +X axis (c) Fc F =5 N (d) FD F= 8 N
- Two rods and one cable are attached to the supports at O. If two of the forces are as shown, determine the magnitude Fand direction e of the third force so that the resultant of the three forces is vertically downward with a magnitude of 1200 Ib. 840 Ib 320 lb 43° 27° Answers: F = i Ib e = iTwo dogs are pulling on a weird-shaped twig of a tree in different directions. The first dog pulls with force F; = (10.0î – 20. 4j)N , the second dog pulls with force F2 = (-15.0î – 6. 5j)N . What is the angle between forces F, and F2?A force is specified by the vector F = (190i + 80j - 100k) N. Calculate the angles made by F with the positive x-, y-, and z-axes. Answers: O ex= i i
- There are two forces on the 2 kg box in the overhead view of the figure, but only one is shown. For F1 20N, a = 12m/s² and 0 = 30°. A) Find the second force in unit-vector notation B) Find the angle between the second force and the x- axis.At what angle 9 must the 420-lb force be applied in order that the resultant R of the two forces have a magnitude of 1060 lb? For this condition what will be the angle ß between R and the horizontal? 790 lb Answers: 0= B = i i 420 lbThe hamstrings pull on the tibia with a force of 510 N at 30 degrees to the bone: that is the angle between the force vector and tibia is 30 degrees. The distance along the tibia from the knee joint center to the tendon insertion is 3.5 cm. What is the magnitude of the force component that is parallel to the tibia?
- Two rods and one cable are attached to the supports at O. If two of the forces are as shown, determine the magnitude F and direction of the third force so that the resultant of the three forces is vertically downward with a magnitude of 1270 lb. 1200 lb 450 lb 26° Answers: F = i 0= i 40° O lb 0 ·xAt what angle 8 must the 380-lb force be applied in order that the resultant R of the two forces have a magnitude of 1070 lb? For this condition what will be the angle ß between R and the horizontal? 380 lb 930 lb Answers: 0= i 38 B = 0 0A student's car stalls right in front of a speed bump while she is on her way to physics class. To pull it over the bump, she ties a cable to her bumper and to a nearby tree, and pulls with a force, F, of 81.0 lbs (360 N) at the midpoint in a perpendicular direction.If θ is 11.0°, what is the size of the force pulling the car in lbs