F-2.0 m -2.0 m→- -4.0 m-

Q: A meter stick (a uniform thin rod of length 1.0 m and mass 0.33 kg) is placed on a fulcrum at the 68…

A: Length of meter stick = 1 m mass of meter stick = 0.33 kg location of center of mass of stick = 0.5…

Q: 2.15 A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man…

A: The Diagram for the given Question is:

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: 3. (15 points) A uniform, 255-N rod that is 2 m long carries a 225-N weight at its right end and an…

A: For rotational equilibrium  Clockwise torque =anticlock wise torque

Q: A tightrope walks across a 30-m long wire tied between two poles. The center of the wire is…

A: Recall  We would consider the equilibrium of tightrope walker For equilibrium  ∑Fx=0∑Fy=0

Q: You sit 12m away from the center/ pivot of a Seesaw and your mass is 70 kg. Another person with mass…

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

Q: 0.3 m 0.7 m M Figure A2 If the mass of the plank is 9.4 kg what mass (M) is needed to balance the…

A:

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

A:

Q: A little league player balances a bat 65.0 cm from one end. She then hangs her 0.540-kg batting…

A: CM of bat is at 65cm  When helmet of 0.54 kg hung then balance shifted to 24.5cm

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

A:

Q: Suppose a 900-kg car is on the bridge in Figure shown with its center of mass halfway between the…

A: Here, mass of the bridge =2500kg Net torque is zero at the left hinge. Torque due to the weight of…

Q: Soon-Yi is building a mobile to hang over her baby’s crib. She hangs a 0.020 kg toy sailboat 0.010…

A: Length of bar = 0.5 m Distance between toy sailboat and toy truck = 0.5 - 0.01 - 0.2  = 0.29 m Let…

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 56 kg woman stands on a very light, rigid board that rests on a bathroom scale at each end, as…

A: Given,

Q: Two children are balanced on a seesaw that has a mass of 13.0 kg. The first child has a mass of 26.0…

A: Mass of seesaw (M) = 13 kg Mass of first child (m) = 26 kg Distance of first child from pivot (d) =…

Q: b a 3.0 kg 1.0 kg

A: Given: The mass at the left end is 3 kg. The mass at the right end is 1 kg. The value of a is 30 cm.…

Q: Find the x - and y -coordinates of the center of gravity for the boomerang in Figure P8.12a.…

A: Length , l = 0.3 m Mass , m = 0.25 kg To find = x and y co-ordinates of center of gravity of the…

Q: A student lies on a very light, rigid board with a scale under each end. Her feet are directly over…

A:

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

A: Given: The length of the meter stick is L=100 cm, The weight of block 1 is W1=21 N, The weight of…

Q: Sam and Joe are carrying a 400 N uniform beam when Cheetah (Tarzan's pet chimp having a mass of 33.0…

A:

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

A: Ans wer :- a) We need to cancel the moments from each of the blocks. Let the block be placed at x…

Q: wooden plank is supported at two points as shown. What is the shortest distance from the end that a…

A: Given : Length of Plank L = 6 m Mass of plank , m = 20 kg  Mass of person M= 80 kg let shotest…

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

A:

Q: The two children shown in Figure are balanced on a seesaw of negligible mass. The first child has a…

A: Given: m1 = 26 kg  r1 = 1.6 m m2 = 32 kg

Q: 18) 0.3 m 0.7 m M Figure A2 If the mass of the plank is 8.8 kg what mass (M) is needed to balance…

A: Mass of the plank is given as, m1 = 8.8 kg Distance between the fulcrum and the plank is given as,…

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 64 kg student stands on a very light, rigid board that rests on a bathroom scale at each end, as…

A:

Q: A 1 kg rock is suspended from the tip of a horizontal meter stick at the 0 cm mark so that the meter…

A: The mass of the rock suspended from the tip of the horizontal meter stick at the x0 = 0 cm, m = 1…

Q: 11. A uniform board of mass 5 kg serves as a seesaw for two children. The child on left has a mass…

A:

Q: Two children hold opposite ends of a lightweight, 1.8-m-long horizontal pole with a water bucket…

A:

Q: A hungry bear weighing 700 N walks out on a beam in an attempt to retrieve a basket of goodies…

A:

Q: For the student shown, approximately how far from her feet is her center of gravity?A. 0.6 m…

A:

Q: A 39 kg , 5.0 m long beam is supported, but not attached to, the two posts in the figure. A 20 kg…

A: he get to the right end of the beam without it falling over until net torque on beam remains zero.

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

A:

Q: A boy and a girl are balanced on the massless seesaw. The boy has a mass of 75 kg and the girl's…

A: Given: The mass of the boy is 75 kg. The mass of girl is 50 kg. The position of the boy from the…

Q: The center of mass of a person may be determined by an arrangement such as the one shown in the…

A: The free-body diagram of the provided arrangement is drawn below.

Q: The cylinder and the block are connected by a horizontal cord. Determine the largest couple C (in…

A:

Q: A child with a mass of 11 kg sits at a distance of 1 m from the pivot point of a seesaw. Where…

A: Given data The mass of the child 1 is m1 = 11 kg. The distance of child 1 from the pivot point is…

Q: Two kids are on a uniform seesaw supported at its center. The kid is on the right side of the seesaw…

A:

Q: A broom balances at a point x from its upper end. When a weight of mass m is attached at its upper…

A: (a)Centre of mass of the broom is,Rewrite the above expression.

Q: A 20 kg child and a 30 kg child sit at opposite ends of a 4m seesaw that is pivoted at its center.…

A: Given:  First child mass m1 =20 kg  Second child mass m2 = 30 kg Third child mass m3 = 20 kg Seesaw…

Q: At what distance from the fulcrum should a 20 N weight be placed to balance the system?

A: A beam is placed evenly on pivot point(fulcrum) On one side a 50N weight is placed 20cm from the…

Q: The larger ball in the picture has a mass m1 = 30 kg while the smaller ball has a mass m2 = 10 kg.…

A: The solution is given below

Q: An 8 m long uniform seesaw of 20 kg mass is supported at P by a 50 kg student at one end, an 80 kg…

A:

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

A: Given data: The length of the meter stick is L=100 cm. The stick pivoted at its center of gravity…

Q: A rider of mass 78.0-kg sits 1.70 meters left of the pivot point. A different rider sits 3.5 meters…

A:

Q: As a swimmer pulls his arm through the water, various muscles exert forces on the upper arm. The…

A: Given data D=33cm = 0.33m d=7.30cm = 0.073m Fhand = 119 N

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.