1.1 m 1.8 m FIGURE P8.6

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.02 g coins…

A: In this question, for the meter stick to balance,  the resultant torque about the pivot is zero.

Q: Bobina and Bob are on the seesaw down at the elementary school playground and decide to see if they…

A: Weight of Bobina , W1 = 400 N Weight of Bob, W2 = 450 N Distance of Bobina from the fulcrum , R1 = 2…

Q: Q9. Forces are applied along various points on a lever arm as shown below. Calculate the net torque…

A: We have a lever with four forces acting on it of magnitude F1=15 N at r1=20 m, F2=5 N at r2=15 m,…

Q: t the park, a 7 m long seesaw is supported in the middle.A 50 kg child sits at the far left end and…

A: Given  Mass of first child is m1 =50 kg Mass of second child is m2=65 kg

Q: A 5.4 kgkg cat and a 2.1 kgkg bowl of tuna fish are at opposite ends of the 4.0-mm-long seesaw.…

A: The net force experienced by an object is equal to mass times the acceleration of the object. For a…

Q: A man is holding the yoga position shown. The center of gravity of the combination of his head,…

A: Step 1 As per Kennedy's theorem, Two links are under constant motion only if the I centres are in…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.78 g coins…

A: In the given question, a meter stick balances horizontally on a knife-edge at the 50cm = 0.5meter…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.56 g coins…

A: FBD     Given: mass of wins                     m1=m2= 6.56 g                               d1=…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.10 g coins…

A:

Q: The cross section of a bearing block is shown in the figure by the shaded area. Calculate the moment…

A:

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.86 g coins…

A: SOlution: Given that initial balance at 50 cm. two mass added m= 2x4.86 g = 9.72 g at 28.9 cm, new…

Q: If you are using a rope to raise a tall mast, attaching the rope to the middle of the mast as in…

A:

Q: A vendor hangs an 8.0 kg sign in front of his shop with a cable held away from the building by a…

A: It is given that,

Q: Shown is the operation of a garlic press. The lower part of the press is held steady, and the upper…

A:

Q: 3. The uniform bridge has a mass M and length L. The knight on the horse is crossing the bridge but…

A:

Q: A thin 2.00 kg box rests on a 6.00 kg board that hangs over the end of a table, as shown. How far…

A:

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.39 g coins…

A:

Q: Suppose the student as shown is 54 kg, and the board being stood on has a 10 kg mass. What is the…

A: It is given that,

Q: A baseball bat has a thick, heavy barrel and a thin, light handle. If you want to hold a baseball…

A: We know that the rotational inertia is a measure of resistance to the change in the rate of rotation…

Q: A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts as shown. A 20 kg boy…

A:

Q: In the figure, the rectangle is a uniform block of mass 259. It is 1 meter wide and 1.21 meters…

A: In the limiting case , when the block is just about to tip over , the entire rectangular block rests…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.02 g coins…

A:

Q: A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin…

A:

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.80 g coins…

A: Visualize the problem:

Q: 3. A composite circular plate was made by welding two semi-circular plates of different densities…

A: For the composite plate to be balanced, it's centre of mass must be balanced.

Q: Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a…

A: Given that, mA=45 kgmB=35 kgmC=25 kg The free body diagram is shown below,

Q: Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments…

A: Using the table provided in the question, determine x and y coordinate of the center of gravity of…

Q: A 41 kg , 5.1-m-long beam is supported, but not attached to, the two posts in the figure (Figure 1).…

A: Given:Beam mass,mbeam=41 kgBoy mass,mboy=22 kgLenght,L=5.1mFind How close can he get to the right…

Q: The main muscles that hold your head upright attach to your spine in back of the point where your…

A: Given: On February 20, 1962, John Glenn made the first U.S.-manned flight around the Earth for three…

Q: A 58-kg woman and a 75-kg man sit on a seesaw that is 4 meters long. The seesaw is perfectly…

A:

Q: In the figure, (b) shows arrows of lengths re locating the center of gravity of each segment. Use…

A: Analyze the following figure, The coordinates of the center of gravity (c.o.g) for given respective…

Q: 10. The weight of an object is to be found using the balance shown in the diagram. object- The…

A: Introduction: Weight balance is one of the oldest method to determine the weight of an unknown…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 6.89 g coins…

A:

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.70 g coins…

A:

Q: The large quadriceps muscle in the upper leg ter- Quadriceps - Tendon minates at its lower end in a…

A: The forces are resolved into components parallel and perpendicular to the tibia, the magnitude of…

Q: 2. A person could not balance her entire weight on the pointed end of a single nail, because it…

A: In case of the person lying on a bed of nails, consisting of a large number of nails, person's…

Q: Three children are playing on a seesaw. The largest child has a mass of 50 kg and sits on the right…

A: This situation can be illustrated by the following diagram: We will use the concept that the…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.89 g coins…

A:

Q: A refrigerator of width w  and height h rests on a rough incline as in Figure P8.25. Find an…

A: The free body diagram,

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.10 g coins…

A:

Q: A meter stick balances at the 50.0 cm mark. If a mass of 50.0 g is placed at the 90.0 cm mark, the…

A:

Q: A little league player balances a bat 57.0 cm from one end. She then hangs her 0.540-kg batting…

A: Given Initial balance point = 57 cm from one end Mass of helmet = 0.540 kg New balance point = 57 cm…

Q: The two objects shown are balanced on the pivot. What is distance d?

A: Analyze the FBD of the given system.

Q: Jack and Jill want to balance their seesaw. Where should they set the fulcrum? Jack has a mass of 25…

A:

Q: Three children are trying to balance on a seesaw.  The seesaw is 4.1 m long and pivots about a rock…

A: From figure Louie sit on left and Laura sit on right,Since the weight of Louie is 50 kg, and Laura…

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.