A 200 gram meter stick has a center of mass at the 50 cm mark. You place a pivot at the 50 cm mark, hang 100 grams at the 10 cm mark and hang 200 grams at the 20 cm mark. How much mass must you hang at the 80 cm mark to balance the system?

Q: You are on a teeter-totter with a young girl. Your mass is 105 kg and the girl's mass is 25 kg. The…

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Q: A 80-kg man stands at the left end of a 20-kg, 7.0-m-long uniform wooden plank. The plank is sitting…

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Q: Lana Kane, Archer’s spy companion, is a 70 kg pole-vaulter. She falls from a peak height of 5.90 m…

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Q: ? A tonated to drive dans not notice that the car in front of him has stopped. After the impact. the…

A: Mass of the truck = Mt = 5Mg = 5x106g = 500Kg Mass of Car = Mc = 2Mg = 200Kg Initial speed of the…

Q: A meter stick with a mass of 100 g balances horizontally when a pivot is placed at the middle (on…

A: The Centre of mass of meter stick and unknown mass is at 60cm

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: James Bond (87 kg) is hanging from a very light board at the top of a tower. Luckily an enemy spy is…

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Q: ladder

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Q: A 90 kg man stands in a very strong wind moving at 14 m/s at torso height. As you know, he will need…

A: Given,           The mass of the man is, M=90 kg.           The speed of the wind is, v=14 m/s.…

Q: A homogeneous, 10 m-long beam has a total weight of 80N and is divided to 10 equal segments. Object…

A: Given:- A homogeneous, 10 m-long beam has a total weight of 80 N and is divided into 10 equal…

Q: A bowling ball rolls 1.1 m up a ramp without slipping. It has an initial speed of its center of mass…

A: acm = mgsin(θ)m+(Icmr2) Icm=25mr2   g=9.8 m/s^2 acm = mgsin(29o…

Q: meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.28 g coins stacked…

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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 0.5 kg meter stick has a center of mass at the 50 cm mark. You place a pivot at the 50 cm mark and…

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Q: A 198 kg, 5 m long beam sits on top of two posts.  A 3 kg pail sits 0.7 m from the left edge of the…

A: SOlution:

Q: The figure shows a uniform 66-g wire bent into a right triangle with L = 13.1 cm and H = 8.5 cm.…

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Q: A girl and a boy stand at opposite ends of a 3.0 m long uniform board with mass 50 kg. The girl's…

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Q: 8.3. A diver has a mass of 70 kg. In 'tuck' position, we can treat this mass as a disc of radius…

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Q: What are (a) the x coordinate and (b) the y coordinate of the center of mass for the uniform plate…

A: The provided section is shown below.

Q: A 63kg beam extends horizontially from the side of a wall.  A 13kg box hangs from the end of the…

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Q: You place a 10 kg brick 0.75 m to the right of a fulcrum. You then place a flower pot 1.5 m to the…

A: according to mechanical advantage . we have  brick weightflower pot weight=distance from fulcrum to…

Q: A 300 gram meter stick has a center of mass at the 50 cm mark. You place a pivot at the 50 cm mark,…

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Q: Bugs Bunny, during his training for the Space Jam sequel, is trying to perform a biceps curl and is…

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Q: 340 660 3. The tasty fish pictured above has a mass of 1100 kg and is hanging from a cable attached…

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

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Q: Four identical uniform blocks of mass 50.0 g and length 10.0 cm are stacked off the edge of the…

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Q: Problem 3: A large airplane typically has three sets of wheels: one at the front and two farther…

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Q: 4. A machine part consists of a thin, uniform 4.00-kg bar that is 1.50 m long, hinged perpendicular…

A: Introduction:  Centre of mass of a body is defined as a point where whole mass of a body is…

Q: 8.2. A metal bar hangs loosely from a pivot on the ceiling. A parent pushes on the bar with a force…

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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: Use g=10m/s/s A 500 gram meter stick has a center of mass at the 50 cm mark. You place a pivot at…

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Q: A 7 meter long stick is suspended from two strings.  The stick has a mass of 17kg that is uniformily…

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

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…

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.