Q#1(a): Two persons are playing on See-Saw as shown in figure below. Calculate the distance at which Person B must sit on to balance moment of force due to Person A on other side of pivot.  Let you are Person A, having weight of (Your Student ID) N.  (Hint: If your ID is 114-2020, then your weight would be 114 N)

Q: is supported against the wind by a rope tied to a stake in the ground, as shown in the figure below.…

A: Given:- F = 119 N,  D = 2.42 m   d = 1.02 m Find:- Find the tension in the rope.

Q: A heavy boy and a light girl are balanced on a massless seesaw. If they both move forward so that…

A: Let the mass of the heavy boy be MBWeight of the heavy boy =MBg Nwhere g is the acceleration due to…

Q: With the shoulder flexed at 30 degrees, the moment arm of the deltoid muscle is 1.8 cm. Solve for…

A: Given: shoulder is flexed at an angle, θ=30° moment arm of deltoid muscle, 1.8 cm=0.018 m Weight of…

Q: The figure shows a person's foot. In that figure, the Achilles tendon exerts a force of magnitude F…

A: Torque is defined as moment of force . It is product of force and perpendicular distance from axis…

Q: You have been hired to design a famıly-friendly see-saw. Your design will feature a uniform board…

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Q: A force 107 N is applied to a rigid body. If the moment arm with respect to a given point O is = 5…

A: Given: F→=10i^ N r→=5j^ N Introduction: The torque is calculated by taking the product of the force…

Q: A 2.10kg pole is attached to a wall with a hinge as shown. A 5.80kg sign is suspended at the other…

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Q: A uniform, 307.81-N rod is 11.65 n long carries a 257.98-N at its right end and an unknown weight W…

A: Given data: The weight of the rod is Wrod=307.81 N. The length of rod is L=11.65 cm. The weight on…

Q: he diagram below shows a beam of length 20.0 m and mass 40.0 kg resting on two supports placed at…

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Q: A uniform rod of length 100cm and mass 0.4 kg is placed on a fulcrum at a distance of 80cm from the…

A: Draw the free-body diagram of the rod.

Q: The cantilevered W530x 150 beam shown is subjected to a 8.3-kN force Fapplied by means of a welded…

A:

Q: In pioneer days, when a Conestoga wagon was stuck in the mud, people would grasp the wheel spokes…

A: The motion of an object is opposed by a force known as friction. Its direction is opposite to the…

Q: A father and his son want to play on a seesaw. Where on the seesaw should each of them sit to…

A: Let the mass of Fater is M, and the mass of his son is m. Let the father is sitting at a distance of…

Q: A square metal plate 0.180 m side is pivoted about an axis point O al its center and per- ar to the…

A: Torque =force × perpendicular distance

Q: Two toddlers Anne (12.0 kg) and Bob (15.0 kg) sat on both ends of a uniform 5.00-m see-saw supported…

A:

Q: A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man weighing…

A: Given, large wood beam weighs 800 N supported by two rods Man weighing 700 N walks from A to right…

Q: A 0.120 kg, 50.0-cm-long uniform bar has a small 0.055 kg mass glued to its left end and a small…

A: Given: Mass of the bar = 0.120 Kg Length of the bar = 50 cm Mass at the other end = 0.110 Kg

Q: A pole is attached to a wall with a hinge as shown. A sign is suspended at the other end of a pole,…

A:

Q: Consider a see-saw with a total length of 8 m. A child with a mass of 31 kg sits on the very end of…

A: The free-body diagram of the see-saw is shown below.

Q: a force acts on an A-truss as shown. Determine the value of the individual torques and the total…

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Q: A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, as shown in…

A: forearm length is d=13inch = 33cm and the bicep is attached b= 1.5 = 3.81cm from the elbow joint.…

Q: A force 107 N is applied to a rigid body. If the moment arm with respect to a given point O is = 5…

A:

Q: The plant in the picture has mass of 27 kg, and is hanging at a distance of 2.1 meters from the…

A:

Q: A rod extends from x=0.0 m to x=2.0 m with a density in kg/m given by f(x)=192 - 12x^2. Find the  A.…

A: The given function is  f(x)=192 - 12x2

Q: Two toddlers Anne (12.0 kg) and Bob (15.0 kg) sat on both ends of a uniform 5.00-m see-saw supported…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: Consider a 80 kg man and his 20 kg son balancing on a seesaw, which is a uniform board 2 m long and…

A: Given that:- Mass of father=80kg Mass of son=20kg

Q: In this experiment, if, say 20 kg are placed on the left side, can the plank be balanced with only…

A:

Q: Elements of the lower arm are shown in the figure. The weight of the forearm is Q = 55 N and its…

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Q: You hold a 1.80-N softball in your hand as shown in the figure. Consider your forearm and hand to be…

A: Given data: Weight of the ball, mg=1.80 N Mass of the fore arm and hand, M=1.45 kg    2L=23.5 cm…

Q: A uniform meter stick has a 45.0 g mass placed at the 20 cm mark as shown in the figure. If a pivot…

A: Let the mass of meter stick is m. The mass of dead weight is 45 g.

Q: If the beam in the figure below is in equilibrium (A is a pin and B is a roller), determine the…

A: At point A reaction force will develop in horizontal and vertical direction whereas at B in vertical…

Q: In the following mechanism, T1 torque and F1 force act on the AB link. Equilibrium condition SCD…

A: Given : Force, F1  =  20 N Torque, T1  =  14 Nm Angle, θ

Q: A nervous diver stands at rest at the end of a 31 kg diving board as shown in the figure. If the…

A: The net torque about the lever point is due to the weight of the person and board. that is,…

Q: Consider an 80 kg Father and his 20 kg son, balancing on a seesaw, which is a uniform board 3 m long…

A:

Q: The plant in the picture has mass of 30 kg, and is hanging at a distance of 1.8 meters from the…

A: Given mass of the rod is M = 7.8 kg mass of the plant is m = 30 kg suspended at x =  1.8 m from the…

Q: Give an example of a system in which the net torque is zero but thenet force is nonzero

A: Let us consider a rod.

Q: A nonuniform, 0.08 kg, meterstick balances when the support is placed at the 51.0 cm mark. At what…

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Q: The plant in the picture has mass of 29 kg, and is hanging at a distance of 2.2 meters from the…

A: In this question we are given that the plant in the picture has mass of 29 kg, and is hanging at a…

Q: 6N - Forces of ( 4 N & 6 N ) act on the lamina ABCD as shown in fig . Find the total moments of…

A: The moment is equal to the product of the force and the perpendicular distance.  Moment of force =…

Q: Using evidence from the lab, describe the role the distance from the pivot plays in balancing the…

A: Given:- Using evidence from the lab, describe the role the distance from the pivot plays in…

Q: A rigid beam of negligible mass is 50 N 100 N pivoted at its centre of gravity. Three forces are…

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Q: Two toddlers Anne (12.0 kg) and Bob (15.0 kg) sat on both ends of a uniform 5.00-m see-saw supported…

A:

Q: A cat walks along a plank with mass M = 6.00 kg. The plank is supported by two sawhorses. The center…

A: Given Data: The mass of plank is, M=6.00 kg The center of mass of the plank at a distance of,…

Q: A uniform beam of length L and mass m is inclined at an angle 0 to the horizontal as shown in the…

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Q: A uniform rod weighs 40 N and is 1.0 m long. It is hinged to a wall at the left end, and held in a…

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Q: Two children of mass 20.0 kg and 30.0 kg sit balanced on a seesaw with the pivot point located at…

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Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.