The 3m long uniform plank is supported by a fulcrum at the midpoint. Where a 45kg student should must be from the midpoint to be able to balance the plank?

Q: A heavy beam is 6.00m long and weighs 250N. It is hinged at one end and held so that it is 30° below…

A:

Q: A uniform beam having a mass of 60 kg and a length of 2.8 m is held in place at its lower end by a…

A: Mass , m = 60 kg Length , L = 2.8 m To find = Force exerted

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: Mass of Anne (m) = 12 kg Mass of Bob (m') = 15 kg Length of see saw (L) = 5 m distance of support…

Q: A bucket crane consists of a uniform boom of mass ?=201 kg and length ?=59.89 ft that pivots at a…

A: The given values are,

Q: A uniform 8.00 m. 1500 kg beam is hinged to a wall and supported by a thin cable attached 2.00 m…

A: The vertical forces acting on the beam are the weight of the beam (mg) pointing downward and the…

Q: Resting horizontally, a wheelbarrow has a total mass of 76 kg, with its center of gravity 15 cm from…

A: We will balance the torque : Fx1.4  = 76x9.8x0.15  F= 79.8 N

Q: A uniform ladder is tilted against a smooth wall at an angle 60⁰ with the horizontal. The mass of…

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Q: A uniform beam of weight 100N is pivoted at P as shown. Weights of 10 N and 20 N are attached to its…

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Q: What are the forces applied to the board by the posts?

A: the values provided in the question are as follows- mass of board = 34 kg length of board = 4.7m…

Q: A seesaw has a mass of 30 kg, length of 3.0 m, and fulcrum beneath its midpoint. It is balanced when…

A: Given mass of seesaw = m = 30 kglength of seesaw = L = 3 m Mass of one person = m1 = 60 kgmass of…

Q: A 60-kg uniform board 2.4 m long is supported by a pivot 80 cm from the left end and by a scale at…

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Q: In the figure below, the uniform 0.60-kN beam is hinged at P. What is the magnitude of the reaction…

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Q: An athlete holds a 7.5-kg shot put in his hand with his lower arm horizontal, as shown in the…

A: Given, mass of the shot put, m = 7.5 kgmass of the lower arm, M = 2.8 kgcenter of gravity of lower…

Q: Q12) The figure shows a uniform, horizontal beam (length - 10 m, mass - 25 kg) that is pivoted to…

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

Q: Abeam with a length of 3.50 m and a weight of 200 N is attached on one end to a vertical wall with a…

A: Given, Weight of beam, W=200N Length of a beam, L=3.5m Weight of the box, w=50N   Let the reactions…

Q: A 15,000 N crane pivots around a friction-free axle at its base and is supported by a cable making a…

A: weight of the crane = W1= 15,000 N crane pivots around a friction-free axle at its base.this is…

Q: A 420-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal,…

A: a) First, we need to find the Tension of the cable where the sum of all the forces acting on the…

Q: A sign is supported by a uniform horizontal boom of length 3.00 m and weight 80.0 N. A cable,…

A: What is the vertical force Fy exerted on the boom by the hinge. Given,   θ=34.9oweight of…

Q: We have two masses balanced on a centered beam on a fulcrum. If m1 = 10 kg, and m2 = 20 kg, what…

A: Given data The first mass is: m1 = 10 kg The second mass is: m2 = 20 kg The length of the first arm…

Q: A 400-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal,…

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Q: A store's sign has a mass of 20kg and is 3.0m long. It is uniform, so it's center of gravity is at…

A: → moment about point 'B' will be zero .T sin 25°x 3=mg x 1.5T=20x10x1.53xsin 25°=236.6 N

Q: 8-P10. The rectangular plate shown weighs 75 lb and is held in the position shown by hinges at A and…

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Q: a uniform steel beam of mass 150;00 kg is held up by a steel cable that is connected to the beam a…

A: The free-body diagram of the beam is shown below. Here, H denotes the horizontal reaction exerted…

Q: A 10-m beam of mass 280 kg extends over a ledge. The beam is not attached, but simply rests on the…

A: Given: Length of beam,L = 10 m  mass of beam,M =280 kg  mass of student,m = 76 kg

Q: A box of negligible mass rests at the left end of a 2.00 m, 29.0 kg plank (Eigure 1). The width of…

A: The length of the plank is L = 2.00m the mass of the plank is m = 29.0kg The width of the box is w =…

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 0.140 kg, 42.1-cm-long uniform bar has a small 0.055 kg mass glued to its left end and a small…

A: Given: Mass m1 = 0.140 kg Length l = 42.1 cm Mass m2 = 0.055 kg. Mass m3 = 0.150 kg x1 =…

Q: 40.0° K 2.0 m 30.0°

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Q: in length with m

A: GivenLenth of plank, L=8 mMass of plank, M=65 kg

Q: The 30-N uniform rod has a length of l = 2 m. If s = 3 m, determine the distance h of placement at…

A: Given values:S = 3 mI = 2 m

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 5.00 m–long uniform diving board that weighs 250.0 N is supported by two pillars. One pillar is at…

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

Q: The fulcrum of a seesaw 4 m long is located 2.5 m from one end. A person weighing 300 N sits on the…

A: Given data: The length of seesaw is L=4 m. The fulcrum from one end is x=2.5 m. The weight of…

Q: A uniform beam of length L = 1.5 m with a mass of 11 kg is attached to a wall by a cable as shown in…

A: Length of beam = 1.5 m Mass.  = 11 kg  Angle = 26° Tension in the cable = ?

Q: A 480-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal,…

A:

Q: The arm shown in the figure supports a 4kg sphere. The mass of the hand and forearm together is 3kg…

A:

Q: A 3-meter-long beam with weight 200 N is supported by a hinge at the wall and a cable as shown. A…

A: using torque formula,

Q: Two children of mass 16 kg and 39 kg sit balanced on a seesaw with the pivot point located at the…

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Q: Two children of mass 19 kg and 27 kg sit balanced on a seesaw with the pivot point located at the…

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Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: A 2m long uniform seesaw AB is supported at its geometric center. A 600N boy sits 15 cm from point…

A: As per Bartleby rules, we can only answer one question or three subparts of a question. As there is…

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.