A fulcrum is placed 1.0 m from the edge ofa 3.0 m-long wooden uniform plank of mass20 kg. A weight W is placed at the edge of theshort end to balance it. What is the properamount of weight needed to balance the plank?(Hint: first find the plank's weight and drawits vector in the correct location)4.WA1.0 m-- 3.0 m5.Two children are on opposite ends of an8.00 m-long seesaw that is pivoted in themiddle. One child weighs 300. N while the otherweighs 200. N. A third child weighing 150. Nattempts to hop on and balance the seesaw.How far from the fulerum should she sit?

Answered: Image /qna-images/answer/a5ac99ce-0339-453d-8e2a-f1b8c8ad9b79.jpg

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) W 1.0 m- 3.0 m

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) W 1.0 m- 3.0 m

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 39P: The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg...

See similar textbooks

Related questions

Q: before starting this problem. A uniform plank of length 5.0 m and weight 225 N rests horizontally on…

A: Given:- length(L)=5m Plank hanging (d)=1.1 m Weight (W) = 225 N At distance person weight (w)=mg=375…

Q: Batman and Robin are lifting a 196 N uniform board with a length of 2.50 m. Batman exerts 55.0 N at…

Q: 37° 10 m A uniform beam of length 10 m and weight 60 N is attached to a wall by a cable as shown in…

Q: A diving board 3.00 m long is supported at a point 1.00 m from the end, and a diver weighing 500 N…

Q: A beam rests on a fulcrum, 1.5 meters from one end. A weight of 463 kg is suspended from this end…

A: Given data as per question weight = 463kg suspended weight = 2398kg

Q: A 6.0 m plank with a mass of 50 kg is supported on both ends. An 80 kg worker stands on the plank…

A: Solution:-Given that

Q: Problem 8: Consider a rigid steel beam of length L = 11.5 m and mass mb = 412 kg resting on two…

A: See below

Q: A uniform rod has weight 4.0 N and length 1.0 m. It is resting on two supports – the left support…

A: Given: The weight of the rod is 4 N. The length of the rod is 1 m. The position of the left support…

Q: The 3 m long uniform plank is supported by a fulcrum at the midpoint. Where should a 45 kg student…

A: Given: The mass of the student is 45 kg. The length of the plank is 3 m. The free-body diagram is…

Q: Hi, I am in physics I and I'm trying to understand this word problem. It saids that a 6.0-m uniform…

A: a)the torque on both side of the right sawhorses must be same from the center of the board and from…

Q: A beam is connected to the floor by a hinge. A rope is attached to the other end of the beam. The…

A: Given Data : The tension in the string is given as T = 150.7N. The mass of the box is given as mb =…

Q: A uniform beam of length 10 m and mass 100 kg is supported by pylons on either end. A 200 kg box is…

Q: A beam rests on a fulcrum, 1.9 meters from one end. A weight of 218 kg is suspended from this end…

Q: A beam is connected to the floor by a hinge. A rope is attached to the other end of the beam. The…

A: Given: The angle between the rope and the horizontal = 21o Tension (T) = 190.2 N;

Q: A uniform beam is 5.0 m long and is supported as shown in the figure. At the center of the beam, a…

Q: A person is standing on a section of uniform scatfolding as shown in the figure. The section of…

Q: d. A box of mass 23kg sits on the bar at a distance of 3.8m from the left end. TI oported by a cable…

A: Given:- The length of the bar is L = 7.5 m The mass of the bar is M = 24 kg The mass of the box is…

Q: A beam rests on a fulcrum, 2.0 meters from one end. A weight of 285 kg is suspended from this end…

A: Underlying Principle: When the masses or forces get balanced about a point or here, fulcrum; the…

Q: A 30kg ladder is leaning against the wall. The ladder is 8m long and the base of the ladder is 2.5m…

A: To find:The force push against the ladder.Given:The weight of the ladder acts downward from its…

Q: Item 7 In (Figure 1) a 6.00-m-long, uniform beam is hanging from a point 1.00 m to the right of its…

Q: A non-uniform beam has a length of 4.74 m and a mass of 63.7 kg. The beam is resting horizontally on…

Q: One end of a uniform beam of length L=3mandweight 185 Nis connected to a vertical wall with a cable.…

Q: A beam rests on a fulcrum, 2.3 meters from one end. A weight of 444 kg is suspended from this end…

A: When no net torque acts, angular momentum is conserved. Torque is counterpart of force in rotational…

Q: A uniform bar with a length of 6.88 meters and a mass of 29 kg is attached to a building by an axis…

Q: A worker of weight 772.7 kg stands on the end of a beam of weight 1693 N and length L= 119.7 m,…

Q: L = 2.0 m A diver with a mass of 43 kg is standing 1.3 m from the left end of a diving board. This…

A: Given: The mass of the diver is 43 kg. The distance of the diver from the left end is 1.3 m. The…

Q: A uniform ladder rests against a smooth wall so that it makes an angle of 60° with the ground. The…

A: Given, Angle, θ=600, length, l= 10.0 m, weight of ladder, Wl =150 N, weight of child, Wp =250 N, and…

Q: Consider the 120-cm board supporting three loads as shown below. The beam weighs 45 grams. If the…

Q: A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm…

A: distance (d) of fulcrum = 0.288 m mass of rock (m) = 465 kg Maximum force (F) = 671 N g = 9.81 ms2

Q: A uniform beam of length 20 m and mass 100 kg is supported by pylons on either end. A 200-kg box is…

Q: A 9 m long board that has a mass of 14. Each end is held up by a vertical rope. A 45 kg box sits 1 m…

A: Given length of long board L = 9m Mass of board M = 14 kg Mass of box m = 45 kg Distance of the box…

Q: A beam is connected to the floor by a hinge. A rope is attached to the other end of the beam. The…

A: Free Body Diagram:

Q: beam rests on a fulcrum, 1.4 meters from one end. A weight of 274kg is suspended from this end…

Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

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?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg mass is held in the hand. The total mass of the forearm and hand is 3.0 kg, and their center of mass is 15.0 cm from the elbow. (a) What is the magnitude of the force that the biceps muscle exerts on the forearm for =60 ? (b) What is the magnitude of the force on the elbow joint for the same angle? (c) How do these forces depend on the angle ?
42. A 12.0-m boom, AB, of a crane lifting a 3000-kg load is shown below. The center of mass of the boom is at its geometric center, and the mass of the boom is 1000 kg. For the position shown, calculate tension Tin the cable and the force at the axle A. B T 10° 3000 kg 30°
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 uniform horizontal beam with a length of 8 m and a weight of 200 N is attached to a wall by a pin connection. Its far end is supported by a cable that makes an angle of 53° with the beam. If a 600-N person stands 2 m from the wall. What is the tension in the cable? 53.0% 8.00 m OA. 410 N OB. None OC. 313 N D. 196 N E. 502 N
A uniform horizontal beam with a length of 8 m and a weight of 200 N is attached to a wall by a pin connection. Its far end is supported by a cable that makes an angle of 53° with the beam. If a 600-N person stands 2 m from the wall. What is the tension in the cable? 58.07 53.0 8,00 m A. 313 N B. 502 N C. 410 N D. 196 N E. None
7. A 60 kg mother and her 25 kg child sit on the ends of a 3m, 80 kg see-saw. The see-saw itself is symmetric, so that its center of gravity is at its midpoint. 3 m A) If the mother and child are perfectly balanced on the see saw, how far from the child is the fulcrum pushing upwards on the see-saw? B) What force does the fulcrum push up with? aut STE
T1? T2? T3?
Hi, I am in physics I and I'm trying to understand this word problem. It saids that a 6.0-m uniform board is supported by two sawhorses 4.0m apart. A 32kg child walks on the board to 1.4 m beyond the right support when the board start to tip. a.) Find the mass of the board b.) Then he walks back 0.40m and stands still. Find the forces exerted by the supports at this time. (use the mass found in part a). Please be detailed of how this works. Its a harder problem for me to understand. Thank you!
no. 7
A uniform plank of length 2.00 m and mass 31.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 685-N person is d = 0.500 m from the left end. magnitude of IN N magnitude of T magnitude of ₂ N Need Help? L 1₁. T₂C -2.00 m Read It Watch It 40,0⁰
A 5-m weightless strut, hinged to a wall is used to support a 1189 N block as shown. Determine the vertical component of the force (N) of the hinge on the strut. Round off only on the final answer expressed in 3 decimals. Instead of units, indicate the direction by typing U (if upwards) or D (if downwards). ... 3 m B W hinge
Help me please. Thank you.