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- A sledge is being pulled by two horses on a flat terrain. The net force on the sledge can be expressed in the Cartesian coordinate system as vector , where and denote directions to the east and north, respectively. Find the magnitude and direction of the pull.In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace the central knot to one side or the other. Two students pull with force 196 N each to the light, four students pull with force 98 N each to the left, five students pull with force 62 N each to the left, three students pull with force 150 N each to the right, and one student pulls with force 250 N to the left. Assuming the positive direction to the tight, express the net pull on the knot in terms of the unit vector. How big is the net pull on the knot? In what direction?A telephone pole has three cables pulling as shown from above, with and (a) Find the net force on the telephone pole in component form. (b) Find the magnitude and direction of this net force.
- A block has two forces on it. One force is 15N going north and the other is 22N going east. What is the overall force pushing on the block with magnitude and direction?Three concurrent forces are pulling the box, the first one pulls 5 N, North; second pulls 5N, South and and the third one pulls 8 N, East. What is the magnitude and direction of their resultant force? a. 18 N, East b. 8 N, West c. 8 N, East d. 3N, WestA 1230 kg automobile is pulled by a horizontal tow line with a net force of 872 N. What is the acceleration of the auto? (answer in m/s^2)
- What is the net force of the bear due to the three children pulling on it ? Give the x and y componentsThe helicopter view in above figure shows two people pulling on a stubborn mule. The person on the right pulls with a force F1of magnitude 120N and direction of θ 1=60.0 0 The person on the left pulls with a force F2of magnitude 80.0N and direction of θ 2=75.0 0 . Find (a) the single force that is equivalent to the two forces shown and (b) the force that a third person would have to exert on the mule to make the resultant force equal to zero. The forces are measured in units of newtons (symbolized N).Margie, who weighs 649 N, is standing on a bathroom scale that weighs 55.0 N. a. With what magnitude force does the scale push up on Margie? answer in N b. attached picture 1 c. With what magnitude force does the floor push up on the scale? answer in N d. attached picture 2
- A 15-kg block is pushed across a rough horizontal surface by a force that is angled 30.0◦ below the horizontal. The magnitude of the force is 100 N and the acceleration of the block as it is pushed is 4 m/s2. What is the magnitude of the contact force (the vector addition of normal force and friction) exerted on the block by the surface?which of teh given mathematical expressions can be used to find the magnitude of the bouyant force? a. Fb=pgV b. Fb=mgV c.Fb=gAd d.Fb=pmVTwo forces, F1 and F2, of magnitude 30 and 60 pounds,respectively, act on an object. The direction of F1 is N10°E and the direction of F2 is N60°E. Find the magnitude, to the nearest hundredth of a pound, and the direction angle, to the nearest tenth of a degree, of the resultant force.