2.0 m 1.0 m 4.0 kg- 1.0 kg d FIGURE P8.9

Q: 47. || BIO Hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a…

A: The given arm works as the lever. According to the lever rule, Net torque about the pivot point = 0

Q: Shown is, a 70 kg man walks out on a 10 kg beam that rests on, but is not attached to, two supports.…

A:

Q: A bar on a hinge starts from rest and rotates with an angular acceleration   ? = 14 +   t,   where ?…

A:

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 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: 55. A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts in Figure P8.55. A…

A: Solution :-

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: A dental bracket exerts a horizontalforce of 80.0 N on a toothat point B in Figure P8.6. What isthe…

A: Given:Value of Force, F = 80 N

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: 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: A uniform, 255-N rod that is 2 m long carries a 225-N weight at its right end and an unknown weight…

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

A: Given,

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: 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 seesaw with a length of 5 m and a mass of 40 kg is pivoted at its center. A 20kg child sits on one…

A:

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

A:

Q: A 75-kg adult sits at one end of a 9.0-m-long board. His 25-kg child sits on the other end. (a)…

A:

Q: , A seesaw in a children’s playground is 4.00 m long pivoted at its center. Suppose a 25-kg child…

A: Given: The length of the seesaw is 4 m. The mass of the first child is 25 kg at the one end of the…

Q: Even when the head is held erect, as in Figure shown, its center of mass is not directly over the…

A: Given: W = 50 N In the given figure, take anti-clockwise torque as positive and clockwise torque as…

Q: A uniform, 255-N rod that is 2 m long carries a 225-N weight at its right end and an unknown weight…

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: Which of the following statement is false?   An object is said to be in equilibrium if and only if…

A: An object is said to be in equilibrium if net force (vector sum of all forces) acting on it is zero…

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

A:

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: Sketch a force acting at point P shown that would make the rod be in static equilibrium. Is there…

A: For the given rod to be in static equilibrium net force and torque acting on it should be zero.

Q: 14. A lady weighing 450 N sits on one end of a seesaw that is 3 m long and is pivoted 1.3 m from the…

A: Given Weight of lady W1=450 N Length of seesaw L=3m Distance of lady from pivot d=1.3m

Q: Item 6 A uniform, 255 N rod that is 2.10 m long carries a 225 N weight at its right end and an…

A: given that,W1=225 NL=2.10 mW2=225 NW3= unknowntheir position,x1=2.10 mx2=1.05 mcenter of gravity…

Q: A uniform, 267 N rod that is 2.06 mm long carries a 225 N weight at its right end and an unknown…

A: Given Data : The weight of the rod is given as W1 = 267 N. The length of the rod is given as L =…

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: Ex : What is the value of the force (F) required to balance the system in the figure? M = 5 kg and F…

A: Introduction: A system will be said to be balanced when the net torque produced by the forces about…

Q: What is the magnitude force needed to put the object into rotational equilibrium?  a) for figure C?…

A:

Q: 23. || In Figure P7.23, force F₂ acts half as far from the pivot as F₁. What magnitude of F2 causes…

A: Force F2 acts as half as far from the pivot as F1. To Determine: The magnitude of F2 causes the net…

Q: A man is attempting to raise a 7.5-m-long, 28 kg flagpole that has a hinge at the base by pulling on…

A:

Q: A cat walks along a plank with mass M = 6.00 kg. The plank is supported by two sawhorses. The center…

A: Given Data: The mass of plank is, M=6.00 kg The center of mass of the plank at a distance of,…

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: The two ends of the barbell shown are made of the same material. Which of the points shown is at the…

A: The center of gravity is given by C(x)=M1x1+M2x2M1+M2

Q: In exercise physiology studies, it is sometimes important to determine the location of a person’s…

A:

Q: A seesaw with a length of 5 m and a mass of 40 kg is pivoted at its center. A 15kg child sits on one…

A: Here length of the seesaw is L= 5m  Mass, M = 40 Kg  Mass of the child ,m= 15 Kg

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.