Two people of masses mi (on the left) and m2 (on the right) are balanced on an unmoving see-saw as shown in the picture to the right. The plank they sit on has a mass of M and has its center at the hinge in the middle. The plank is tilted by 20° away from horizontal. The person on the left is rị away from the hinge, the person on the right is r2 away from the hinge. For the see-saw, if the hinge exerts Fn, draw a Free Body Diagram for the plank. For the see-saw, draw a Torque Diagram (as taught in this course) with the hinge as the pivot point. Assume frictional torque is small enough to ignore and leave it off the diagram.
Q: A meterstick is balanced on a fulcrum at its center. Then a 310 N weight is placed 20 cm to the…
A: Given data: Weight (W1) = 310 N Placed at (r1 ) = 20 cm, to the left of centre Weight (W2) = 150 N…
Q: Both questions please
A: Step 1: Step 2: Step 3: Step 4:
Q: A wood plank (length 4.8 m and mass 9.4 kg) is balanced between two saw horses, as shown in the…
A:
Q: You sit 12m away from the center/ pivot of a Seesaw and your mass is 70 kg. Another person with mass…
A: The free-body diagram of the see-saw is shown below.
Q: meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.28 g coins stacked…
A:
Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.90 g coins…
A: Given:Length of the stick = 1m = 100 cmMass of a coin = 5.90 gPosition of the coins = 17.2 cmBalance…
Q: A wood plank (length 4.6 m and mass 15.6 kg) is balanced between two saw horses, as shown in the…
A: The mass of the Plank is M = 15.6 kg The length of the Plank is L = 4.6 m The distance of the right…
Q: Three children are balanced on a a seesaw as shown. The fulcrum is located below the center of…
A: Given information: The fulcrum is located at the center of mass. The length of the see-saw is (l) =…
Q: A 5.4 kgkg cat and a 2.5 kgkg bowl of tuna fish are at opposite ends of the 4.0-mm-long seesaw. How…
A: Given: m1= 5.4 kg m3 = 2.5 kg L = 4m m2 = 3.8 kg
Q: (a) The fishing pole in the figure below makes an angle of 20.0° with the horizontal. What is the…
A:
Q: A plank of length l = 2.45 m is to be balanced on a see-saw. On one side of the plank hangs a mass…
A:
Q: A 40kg dog and a 30kg cat are sitting on either end of a long board balanced precariously on a pivot…
A:
Q: Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a…
A: When placed on the ends of a seesaw, children perform up and down motions in an arc, which is a part…
Q: small airplane is sitting at rest on the ground. Its center of gravity is 2.58 m behind the nose of…
A:
Q: Big Sister and Little Brother are balanced on a see-saw. Big Sister sits a distance of 1.13m away…
A: Please see the attached image for the solution. If there are queries or if the image is not…
Q: A weight of 6 N is located 11 cm from the fulcrum on the beam of a simple balance. What weight…
A: Weight located on one of the side of the fulcrum (W1)=6 N Distance of weight from the fulcrum…
Q: Create a simple balance using a ruler as the balance beam and a pencil as the fulcrum. Put 2 nickels…
A:
Q: A wood plank (length 4.9 m and mass 14.7 kg) is balanced between two saw horses, as shown in the…
A:
Q: Create a simple balance using a ruler as the balance beam and a pencil as the fulcrum. Put 2 nickels…
A: Answer :- Yes , it is necessary because ( mass × distance from fulcrum) must be constant
Q: A light triangular plate OAB is in a horizontal plane. Three forces, F₁ = 6.0 N, F₂ = 9.0 N, and F3…
A: Notice that the force F3 does not contribute to the torque around O as it passes through O. Hence…
Q: The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is…
A: Ans wer :- a) We need to cancel the moments from each of the blocks. Let the block be placed at x…
Q: A child with a mass of 24.3 kg sits on a see-saw, 2.75 m from its center (on its fulcrum). How far…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: The ladder in the picture has a mass of 34 kilograms and a length 3.2 meters. Fn=333.2N a.Assume…
A: As per guideline we are suppose to do only 3 subpart from multipart question please post the rest of…
Q: Two people are sitting on either side of a seesaw. One has mass m and is sitting x meters from the…
A:
Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.74 g coins…
A:
Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.29 g coins…
A: M1 = M2 = 3.29 g X1 = 50 cm. X2= X3= 35.8 cm Xcm = 47.6 cm
Q: A uniform plank of length 5 m and weight 200 N rests horizontally on two supports with 1.1 m of the…
A:
Q: A 67.0 kg adult sits at one end of a 10.0 m board, on the other end of which sits his 23.0 kg child.…
A:
Q: A uniform metal bar of length L and mass M is mounted to an axle that passes through its center of…
A: Recall that torque is the twisting force that causes an object to rotate. The torque can be found…
Q: To get up on the roof, a person (mass 70.0 kg) places a 6.00 m aluminum ladder (mass 10.0 kg)…
A: Given data: M=70.0 kg m=10.0 kg l=6 m x=2 m xcm=2m X=3 m where, M is the Mass of the person m Mass…
Q: A 2.00-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been…
A:
Q: The fishing pole in the figure below makes an angle of 20.0° with the horizontal. What is the torque…
A: Given data: The force applied by the fish is F = 90 N. The length of between force and hand is…
Q: A 13.6 kg. 3.6 m long seesaw bar (assume that the bar is uniform) is perfectly balanced upon a…
A:
Q: A see-saw consists of a uniform board with mass 43.6kg and length l = 2.01m. It supports two friends…
A: For the see-saw to balance, the torques due to the forces acting on either sides should balance each…
Q: To get up on the roof, a person (mass 62.0 kg) places a 6.80 m aluminum ladder (mass 11.0 kg)…
A:
Q: Two kids are playing on a seesaw on the school playground. The first kid (of mass 50 kg) sits 2…
A:
Q: To get up on the roof, a person (mass 82.0 kg) places a 6.60 m aluminum ladder (mass 11.0 kg)…
A:
Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.35 g coins…
A:
Q: A wood plank has a length of 4.2 m an
A: Given: Length of wood plank is L=4.2m Mass of wood plank is m=14.3kg distance d1=3.2m Mass of…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.21 g coins stacked over the 24.9 cm mark, the stick is found to balance at the 36.4 cm mark. What is the mass of the meter stick?The diagram above shows a 3.00 m long uniform beam. The left end of the beam is attached to a wall by a frictionless pivot. The beam is supported by a string that keeps the beam horizontal. The string makes an angle of 35.0° relative to vertical. The beam has a mass of 7.00 kg. A 2.00 kg mass is located at the end of the beam. A 6.00 kg mass is located 1.00 m from the 2.00 kg mass, as shown in the diagram. a. What is the tension in the string? b. What is the y-component of force applied to the beam by the pivot?Two children are trying to balance on a seesaw, which includes a fulcrum and a board that is 10m long. Boy A has a mass of 50kg, and boy B has a mass of 35kg. How far from the pivot point should boy B be to maintain stable equilibrium?
- B4Consider a teeter-totter that is made out of pine, shown below. A pineapple sits on one side of the teeter-totter, a distance 1.38 m from the pivot point, while an apple (non-pine) sits on the other side, a distance of 2.65 m from the pivot. If the pineapple has a mass 125 g, what must the mass of the apple be in order to balance the teeter-totter (i.e. to maintain rotational equilibrium)? [Answer in units of grams (g) with 3 sig figs but do not enter units with your answer]To get up on the roof, a person (mass 87.0 kg) places a 5.60 m aluminum ladder (mass 14.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. The ladder rests against a plastic rain gutter, which we can assume to be frictionless. The center of mass of the ladder is 2 m from the bottom. The person is standing 3 m from the bottom. What are the magnitudes (in N) of the forces on the ladder at the top and bottom? top N bottom N
- The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is at the 50 cm 10 20 30 40 50 60 70 80 90 mark. There is a 20.0 N block hanging from the 80 cm mark. Decide where each of the other blocks should be placed, one at a time, to balance out the 20.0 N block. 3 2 1 At what mark on the meter stick would you place a 19.0 N block to balance the 20.0 N block? mark: cm At what mark on the meter stick would you place a 42.0 N block to balance the 20.0 N block? mark: cm about us careers privacy policy terms of use contact us help -8Bob and Anna sit on opposite ends of a uniform see-saw which is 12.0 m in length. The see-saw is balanced by a fulcrum which is located 4.00 m from Bob. Bob has a mass of 85.0 kg, and the see-saw itself has a mass of 100 kg. Anna’s mass is unknown. NOTE THAT THE FULCRUM IS NOT PLACED AT THE CENTER OF MASS OF THE SEE- SAW!!! a) What is the net torque on the see-saw? Explain clearly and briefly how you know. b) Draw a properly labeled extended force diagram of the see-saw c) Solve for Anna’s mass. Show your work clearly!Three children are trying to balance on a seesaw. The seesaw is 4.1 m long and pivots about a rock at its center. Louie and Laura are already sitting on opposite ends. If Martha weighs 33 kg, where should she sit so as to balance the seesaw?
- Rylie, whose mass is 73.3 kg, is standing on the edge of a steel beam that overhangs a construction site. The horizontal beam is 5.98 m long and has a mass of 128 kg. The distance between the two posts is 3.71 m.A seesaw is a flat board that is balanced on a fulcrum (point of balance). When the weight at either end is equal, the seesaw is balanced and both ends are at the same height. When weight is added to either side, the balance will tilt in that direction. To prevent the balance from tipping, the location of the fulcrum must be moved to accommodate the difference in weights placed on each end. A playground equipment company wants to produce a seesaw that will be perfectly balanced when an adult and a child are on either end. The company estimates that an adult, on average, weighs four times as much as a child. The length of the seesaw is 10 feet. C A { 01 2 3 4 5 6 7 8 9 10As a swimmer pulls his arm through the water, various muscles exert forces on the upper arm. The figure below shows a force F exerted on the humerus (upper arm bone) by the pectoral muscle. The muscle is connected to the bone d = 7.30 cm from the center point O of the shoulder joint. Find the magnitude of F, if this force's torque on the arm provides half of the total torque balancing the torque produced by the water pushing against the hand. (Let Fhand = 119and D = 33.0 cm. )