30.0 cm 20.0 cm FIGURE P8.20

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: A 5.0-m-long,15-kg level plank is supported by two pivots that are resting on level ground at…

A:

Q: If you hold your arm outstretched with palm upward, as shown, the force to keep your arm from…

A: a) Sum of moment about '0' is zero .   ΣMo=0   F sin 150.17-4x9.81x0.38=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: 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 man is holding the yoga position shown. The center of gravity of the combination of his head,…

A: Step 1 As per Kennedy's theorem, Two links are under constant motion only if the I centres are in…

Q: A typical horse weighs 5000 N. The distance between the front and rear hooves and the distance from…

A: It is given that,

Q: Q3) If the 1500-lb boom AB, the 200- Ib cage BCD, and the 175-lb man have centers of gravity located…

A:

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: An 8.31-m, 267-N uniform ladder rests against a smooth (frictionless) wall. The coefficient of…

A: As per the given data, Length of the ladder (l) = 8.31 m; Weight of the ladder (W) = 267 N;…

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: Figure P8.29 shows a uniformbeam of mass m pivoted atits lower end, with a horizontalspring attached…

A: a)The mass of the beam is m, horizontal angle is ϴ and distance of the spring is d.

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

A:

Q: A. Who should sit farther from the center of a uniform seesaw, a 93-kg man or his 33-kg son, for the…

A:

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: 1.A 30-kg boy is seated at one end of a 2.0 m long seesaw. Where should a 50-kg man be seated to…

A: mass of boy (m) = 30 kg Length of see saw (L) = 2 m distance of boy from the fulcrum = L2= 2 m2= 1 m…

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

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 woman is pushing a load in a wheelbarrow, as shown. The combined mass of the wheelbarrow and the…

A: Given The combined mass of the wheelbarrow and the load is m = 110 kg. The distance between the…

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 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: 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 5.0-m-long, 15-kg level plank is supported by two pivots that are resting on level ground at…

A:

Q: 1. A 10 ft ladder is leaning a gainst a wall. If the top of the ladder slides down the wall at a…

A:

Q: 3. A composite circular plate was made by welding two semi-circular plates of different densities…

A: For the composite plate to be balanced, it's centre of mass must be balanced.

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 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: 62. I A 120-cm-wide sign hangs from a 5.0 kg. 200-cm-long pole. A cable of negligible mass supports…

A: The angle between the cable and the sign is,

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: How close to the right edge of the 56 kg picnic table shown can a 70 kg man stand without the table…

A: Given data *The mass of the picnic table is m = 56 kg *The mass of the person is M = 70 kg The…

Q: The large quadriceps muscle in the upper leg ter- Quadriceps - Tendon minates at its lower end in a…

A: The forces are resolved into components parallel and perpendicular to the tibia, the magnitude of…

Q: 2. A person could not balance her entire weight on the pointed end of a single nail, because it…

A: In case of the person lying on a bed of nails, consisting of a large number of nails, person's…

Q: (II) 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: As divers stand on tiptoes on the edge of a diving platform, in preparation for a high dive, as…

A: As divers stand on tiptoes on the edge of a diving platform, in preparation for a high dive, they…

Q: When you carry shopping bags, rather than grasp the handles with your hand as in Q8.14a, you might…

A: For a given set of grocery bags the torque they produce about a person's elbow will be larger the…

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: Page < 10. Three children are trying to balance on a seesaw, which includes a fulcrum rock acting as…

A:

Q: A 60.0-kg man stands at one end of a 20.0-kg uniform 10.0-m long board. How far from the man is the…

A: The coordinate of center of mass of a multi body system can be given by  where mi is the mass of…

Q: F1 = 15 N F2 - 10 N 35 A the two forces, determine the magnitude and direction of the net torque…

A:

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

A:

Q: 11. In physiology studies, it is sometimes important to determine the location of a person's center…

A:

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: 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.