The larger ball in the picture has a mass m1 = 30 kg while the smaller ball has a mass m2 = 10 kg. (a) If the larger ball is placed 1 m away from the fulcrum, how far away from the fulcrum must the smaller ball be placed in order for the seesaw to be in equilibrium? Here the fulcrum is in the middle of the seesaw. (b) Now the fulcrum is located one fourth of the way from the left end of the plank and the balls are placed at either end. If the larger ball has the same mass as in part (a), what must the mass of the smaller ball be in order for the seesaw to be in equilibrium? Ignore the mass of the plank.

Q: A meter stick (a uniform thin rod of length 1.0 m and mass 0.30 kg) is placed on a fulcrum at the 61…

A: Let l denotes the meterstick length, m denotes the meterstick mass, r denotes the pivot distance, x…

Q: A Woman of mass 45 kg rolls a rock of mass 180 kg onto one end of negligible mass. She placed a…

A: By condition,

Q: A bicycle wheel can be thought of a uniform hoop with a radius of 34 cm and mass 1.9 kg. Consider…

A:

Q: Two masses M₁ and M₂ are placed at two ends of a massless beam, as shown in the figure. M₁ a Which…

A:

Q: As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 6.3 m. The…

A: Analyze the diagram of the question with all acting forces is given below, Here, N1, N2 denotes the…

Q: A tower outside the Houses of Parliament in London has a famous clock commonly referred to as Big…

A:

Q: Find the amount of torque needed to push open a door in each of the given scenarios: You push with…

A:

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

A:

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: In a physics experiment, a metal bar is balanced on a fulcrum. A 5.0 kg mass is placed on the bar,…

A:

Q: Calculate the magnitude of the total torque in the center of a square, giving that the square side…

A: Given: Force Fx = 5 N Force Fy = 4 N Side of square a = 40 cm = 0.4 m.

Q: Which of the following is the condition for the rotational equilibrium? The sum of the clockwise…

A:

Q: The product of the applied torque and the length determines the relative angle of twist between the…

A:

Q: A heavy block of a mass of M = 71 kg is attached to the left end of a horizontal beam (beam's mass m…

A:

Q: Consider a beam of length L = 11 feet with a fulcrum x feet from one end as shown in the figure. Two…

A: Consider the clockwise direction of the moment as negative and the counterclockwise direction of the…

Q: A (1000 kg) car slows from (30 m/s) to stop in (12 second). The car has wheels that are (0.5…

A: Given: The mass of the car is 1000 kg. The initial speed is 30 m/s. The final speed is 0 m/s. The…

Q: A 4.8 m ladder rests against a wall as shown. The ladder has a mass of 26.4 kg. A 57.6 kg person…

A:

Q: A board has its mass of 30.0 kg uniformly distributed along its' length of 4.00 m. The board sits on…

A:

Q: hree small objects are arranged along a uniform rod of mass m and length L: one of mass m at the…

A:

Q: Consider a see-saw with a total length of 8 m. A child with a mass of 31 kg sits on the very end of…

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

Q: A child of mass 25 kg sits on one side of a see-saw, 2.2 m from the see-saw's pivot. An adult of…

A: A)B)∑M=025kg ( 2.2m) = 75kg ( x ) C) 25(2.2) / 75 = XX = 0.7333 m

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

A:

Q: A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable,…

A:

Q: Three small objects are arranged along a uniform rod of mass m and length L: one of mass m at the…

A: Given:

Q: The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N, 25 N and…

A: Given that: The plank is massless.

Q: A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm…

A: Given, d = 0.255 mmass of the rock, m 405 kgmaximum force applied on the other end of the rod, F=…

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

A: Consider the following figure.   Let O be the center of the meter stick, B be the point of…

Q: A ladder with a length of 5.0 m and a weight of 650 N is placed so its base is on the ground 4.0 m…

A:

Q: A steel ladder of mass 40 kg and of length 20 m leans against a frictionless wall at a point 16 m…

A: Situation of the problem has been shown in the figure.

Q: At what position (measured from the 0 cm end of the meter stick) should a 0.22 kg mass be hung to…

A: Answer is 61 cm from 0 cm mark . Explanation   with answer is in next step.

Q: block of mass M = 6.1 kg rests

A: The questions are answered below

Q: Suppose a person wishes to lift a large rock with the lever. If the rock has a mass Of 250 kg and is…

A:

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

A:

Q: A board of mass 3.0Kg serves as a seesaw for two children. Child A has a mass of 40Kg and sits 2.5m…

A: mass of child A = 40 kg mass of child B = 25 kg distance of child A from pivot point = 2.5 mdistance…

Q: A diver of weight 580 N stands at the end of a diving board of length L= 4.3 m and negligible mass…

A:

Q: A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable,…

A: Given, Length of the rod=2.6 m mass of the signal board=9.4 kg The angle between the building and…

Q: The plant in the picture has mass of 30 kg, and is hanging at a distance of 1.8 meters from the…

A: Given mass of the rod is M = 7.8 kg mass of the plant is m = 30 kg suspended at x =  1.8 m from the…

Q: A see-saw consists of a uniform board with mass 43.6kg and length l = 2.01m. It supports two friends…

A: For the see-saw to balance, the torques due to the forces acting on either sides should balance each…

Q: If you and your friend are sitting on a seesaw and their masses are 60 kg and 80 kg, (a) how far you…

A: Given:- If you and your friend are sitting on a seesaw The mass of the two friends is given as…

Q: Two forces, F1=100 N (Newton) and F2=20N, are applied on opposite sides of a door's knob at angles…

A: Given:Force,F1=100 NForce,F2=20 NRotation axis ,r=0.8mAngle,θ1=30Angle,θ2=60Find the net torque…

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.