A 1 kg rock is suspended from the tip of a horizontal meter stick at the 0 cm mark so that the meter stick barely balances like a seesaw when it’s fulcrum is at the 25 cm mark. From this information the mass of the meter stick is what?

Q: In the figure below a cylinder having a mass of 2.5 kg can rotate about its central axis through…

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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: This girl is babysitting two 30-Kg kids at a neighborhood park. She places one on each end of a…

A: The formula to calculate torque is given by; τ=F× rτ=F r sinθWhere;F= forcer=distance between axis…

Q: What is the net torque about the axle? Express your answer to three significant figures and include…

A: Given:- From the figure given in the question  F1= 10 N F2= 10 N The length of the rod is L= 100 cm.…

Q: A professor's office door is 0.99 mm wide, 2.1 mm high, 4.2 cm thick; has a mass of 28 kg, and…

A: The width of the door is The hight of the door is The thickness of the door is The mass of the door…

Q: A 1200 kg, 20m long heavy bridge is being held by the tension T in a cable. What is the required…

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Q: Joey, whose mass is 36 kg, stands at the center of a 200 kg merrygo- round that is rotating once…

A: Given mass of Joey m=36 kgmass of merry go round m1=200 kgWhen Joey is all the centerIt is…

Q: A miter saw has an operating speed of 1500 rpm (157.08 rad/s). The blade and motor armature have a…

A: We are given initial angular speed. We are given mass of system. We are also given radius. We first…

Q: A professor's office door is 0.97 m wide, 2.1 m high, 4.2 cm thick; has a mass of 25 kg , and pivots…

A: Given Data : The width of the office door is , w = 0.97 m The height of the office door is , h =…

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 0.20 kg meterstick is pivoted at the 40 cm mark. Where should a sack of onions with mass 0.50 kg…

A: Given:mass, m1=0.20 kgdistance, x1=40 cmmass, m2=0.50 kg

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: - L - :2d- X-

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Q: Three children are balanced on a  a seesaw as shown.  The fulcrum is located below the center of…

A: Given information: The fulcrum is located at the center of mass. The length of the see-saw is (l) =…

Q: A tightrope walker is walking between two buildings holding a pole with length ?=14.5 m and mass ?p…

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Q: A meterstick of negligible mass is placed on a fulcrum at the 0.60 m mark, with a 2.0 kg mass hung…

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Q: Luc, who is 1.80 m tall and weighs 950 N, is standing at the center of a playground merry-go-round…

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Q: What is the net torque on the bar shown, about the axis indicated by the dot?

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Q: A student applies a perpendicular 50 N force to the end of a wrench that is 0.20 m long. What is the…

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Q: A student sits on a freely rotating stool holding two dumbbells, each of mass 5 kg as shown in…

A: Given data: The mass of each dumbbells is m=5 kg. The initial angular speed is ωi=0.7 rad/s. The…

Q: The meterstick shown is 100 cm long. It is free to pivot around its center of gravity (CG), which is…

A: We are given the meter scale. We are given a weight hanging on one side. We are also given distance…

Q: A long piece of lumber is pivoted to rotate about a perpendicular axis. Ropes are attached to the…

A: Given that:θ=72°Mass of wood, m=0.75 kgLength of wood, L=2.30 mMass of cylinder, M=0.800 kgDiameter,…

Q: Q8. A 15-kg box sits on a lever arm at a distance of 5 meters from the axis of rotation. What…

A: The free-body diagram of the system is shown below. Here, x is the unknown distance.

Q: A 10 kg object has a moment of inertia of 1.25 kg m2. If a torque of 2.5 Nm is applled to the…

A: Given: The mass (m) of the object is 10 Kg. The moment of inertia (I) of the object is 1.25 Kg.m2.…

Q: The 2.0-m-long, 15 kg beam shown is hinged at its left end. It is “falling” (rotating clockwise,…

A: Given, The length of the beam is 2.0m long The mass of the beam is 15kg

Q: . The moment of inertia of a thin uniform rod of length (1) and mass (M) about an axis passing…

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Q: A bowling ball rolls up a ramp 0.8 m high without slipping. It has an initial velocity of its center…

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Q: A meter stick has a mass of 0.18 kg and balances at its center. When a small chain is suspended from…

A: Let AB be the metre stick, and assume C as its centre so that AC=BC. Let N be the balancing position…

Q: One person was doing a knee extensor muscle training, he used a dumbbell (mass = 10.2 kg) strapped…

A: Please see the explanation for the answer. If you have any questions, just comment down. Thank…

Q: A gymnast does a one-arm handstand. The humerus, which is the upper arm bone between the elbow and…

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Q: The 22-cm-diameter disk pictured can rotate on an axle through its center. What is the net torque…

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Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.74 g coins…

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.