You have a 12.25 kg brick and a 12.75 kg brick, one on either side of our balance beam. If the 12.25 kg brick is placed 0.10 meters to the left of the pivot, how far to the right of the pivot should the other brick be placed? (Submit your answer as a positive value, in meters.) Your Answer:
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- A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum a distance ?=0.288 mfrom the rock, which has a mass of 465 kg, and fits one end of the rod under the rock's center of weight. If the homeowner can apply a maximum force of 671 N at the other end of the rod, what is the minimum total length ? of the rod required to move the rock? Assume that the rod is massless and nearly horizontal so that the weight of the rock and homeowner's force are both essentially vertical. The acceleration due to gravity is ?=9.81 m/s2.A 6.0 m plank with a mass of 50 kg is supported on both ends. An 80 kg worker stands on the plank 1.5 m away from the left end. What weight must each end of the plank support? Separate your answers by a comma (i.e. 340 N, 567 N - the first answer for the left end, the second answer for the right end). Express your answer as a whole number (no decimal). Add the appropriate units.2.15 A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man weighing 700 N were to walk on the overhang portion of the beam, how far can he go from point A before the beam tips over? (Assume the beam is resting on the two supports with no physical connection.) 2m WMAN 100N A Im
- In the figure, a 60 kgkg man walks out on a 14 kgkg beam that rests on, but is not attached to, two supports.(Figure 1) When the beam just starts to tip, what is the force exerted on the beam by the right support? Express your answer to two significant figures and include the appropriate units.You have a 9.25 kg brick and a 7.50 kg brick, one on either side of our balance beam. If the 9.25 kg brick is placed 0.50 meters to the left of the pivot, how far to the right of the pivot should the other brick be placed? (Submit your answer in meters.) Your Answer:A weight of 6 N is located 11 cm from the fulcrum on the beam of a simple balance. What weight should be placed at a point 6 cm from the fulcrum on the opposite side in order to balance the system? N?
- 1. A bridge AB is 36.5 m long. It weighs 2.56 x 105 N. A truck weighing 5.25 x 104 N is 10.2 m from one end of the bridge. Calculate the upward force exerted by each pier to support this weight.2. A 20 kg child and a 30 kg child sit at opposite ends of a 4m seesaw that is pivoted at its center. Where should another 20 kg child sit in order to balance the seesaw?3. A man stands on his toes by exerting an upward force through the Achilles tendon, as inthe figure. Calculate the force in the Achilles tendon if he stands on one foot and has a mass of 80kg.A gymnast with a mass of 52 kg stands on the end of a uniform balance beam as shown in the figure. The beam is 5.00 m long and has a mass of 250 kg. Each support is 0.54m from the end of the beam. What is the force on the beam due to support 2?A beam rests on a fulcrum, 1.4 meters from one end. A weight of 495 kg is suspended from this end causing the beam to balance. If the weight of 495 is suspended on the opposite end of the beam, it is necessary to suspend a 2795 kg weight on the first end in order to effect an even balance. Use g = 9.81 m/s2.
- A 4 m long horizontal uniform beam of mass 24 kg is supported by a wire as shown in the figure. The wire makes an angle of 26 degrees with the beam. Attached to the beam 1.6 m from the wall is a ball with a mass of 57 kg. VWhat is the tension in the string?A weight of 16 N is located at a distance of 16 cm from the fulcrum of a simple balance beam. At what distance from the fulcrum should a weight of 18 N be placed on the opposite side in order to balance the system? cm?A fulcrum is placed 1.0 m from the edge of a 3.0 m-long wooden uniform plank of mass 20 kg. A weight W is placed at the edge of the short end to balance it. What is the proper amount of weight needed to balance the plank? (Hint: first find the plank's weight and draw its vector in the correct location) 4. W A1.0 m- - 3.0 m 5. Two children are on opposite ends of an 8.00 m-long seesaw that is pivoted in the middle. One child weighs 300. N while the other weighs 200. N. A third child weighing 150. N attempts to hop on and balance the seesaw. How far from the fulerum should she sit?