A cook holds a 2.33-kg carton of milk at arm's length (see the figure below). What force FB must be exerted by the biceps muscle? (Ignore the weight of the forearm. Give the magnitude.)

Q: What is the relationship between centre of gravity and support base for an object in stable…

A: When the line of center of gravity falls inside the base then the system will be in stable…

Q: Explain why touching your toes while you are seated onthe floor with outstretched legs produces less…

A:

Q: What equation represents the second condition for static equilibrium?

A: Conditions of equilibrium are 1.  First condition of equilibrium:- This Condition for equilibrium…

Q: Assuming a single muscle group (biceps) is responsible for carrying a ball with a weight of 5 kg as…

A:

Q: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands and…

A: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands and…

Q: If the maximum force the biceps muscle can exert is 1000 N, can we pick up an object that weighs…

A: To pick up an object, the bicep must exert a torque which is given as, τ=r⊥×F

Q: The center of gravity of a 50g meter stick is at 51 cm and the stick is supported at 70 cm.  Where…

A: Given data:    Mass of meter stick (m) = 50 g = 0.050 kg Mass of object (mb) = 80 g = 0.080 kg…

Q: In an emergency situation, a person with a broken forearm ties a strap from his hand to clip on his…

A:

Q: Why do you tend to lean backward when carrying a heavyload in your arms?

A:

Q: В A cook holds a 1.72-kg carton of milk at arm's length (see the figure below). What force Fa must…

A: Consider a carton of milk of mass m(1.72 kg) and it is placed at the distance l from the joint(axis…

Q: Milk 75.0° B. -25.0 cm- 8.00 cm

A:

Q: To pull with a force F=172 N on the scale as shown, what should the tension in your biceps muscle…

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

Q: The biceps muscle exerts a muscle force of 1000N on the forearm, as per below. The muscle force acts…

A: Magnitude of muscle force F=1000N Angle made by muscle force with forearm = 300 Hence angle made by…

Q: A man can exert a maximum pull of 1000 N but wishes to lift a new stone door for his cave weighing…

A:

Q: A cook holds a 2.15-kg carton of milk at arm's length (see the figure below). What force F, must be…

A: The concept of static torque is used to calculate the force.…

Q: A horizontal beam weighs 451 N, and its center of gravity is at its center.  Find the vertical…

A:

Q: A cook holds a 1.95-kg carton of milk at arm's length (see the figure below). What force F, must be…

A:

Q: Your task is to determine the components of a 4th force that can bring the system into static…

A:

Q: Discuss about Young's modulus associated with elastici

A: Given:- Discuss about Young's modulus associated with elasticity.

Q: The upper leg muscle (quadriceps) exerts a force of FQ = 1140 N, which is carried by a tendon over…

A: It is given that,

Q: Is the Young’s modulus for a bungee cord smaller or largerthan that for an ordinary rope?

A:

Q: Auniform rod 1 m long with weight 6 N can be supported in a hortzontal its ends. What is the…

A: Draw the free-body diagram of the system. Here, x denotes the position of the balance.

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

A: At the equilibrium the sum of the forces acts on the beam when it just starts to tip is zero. The…

Q: Approximately what magnitude force, FM, must the extensor muscle in the upper arm exert on the lower…

A:

Q: Why must you bend forward when carrying a heavy load on your back?

A: The formula for the torque is: As a person carries a heavy load on his back and he doesn’t bend…

Q: Why must you bend forward while carrying a heavy load on your back?

A: It is very much advisable to bend forward while carrying a heavy load.

Q: A super-light horizontal beam supports a 460-N canister as shown in the figure. What is the net…

A:

Q: A taho vendor carries a 1.5 m long light plank over his shoulder. At the ends of the plank are two…

A: Analyze the diagram of the given situation. Here, F and x represent the force exerted by his…

Q: What is the magnitude of the downward force exerted on the ankle joint by the tibia?

A:

Q: A uniform meter stick of weight W is held by a thumb pushing down at the 0-cm line and by fingers…

A: Using moments of force about 0 cm mark,

Q: A cook holds a 2.00 kg carton of milk at arms length. What force must exerted by biceps muscle? (…

A: Mass = 2.00 kg FB--Force on biceps. Fg=mg = Weight of 2 kg carton of milk

Q: Triceps muscle 3 Biceps muscle m=25 kg cm 16 cm 38 cm Calculate the force the biceps muscle must…

A: Given : r1 = 4 cm = 0.04 m r2 = 16 cm = 0.16 m r3 = 38 cm = 0.38 m ma = 2.5 kg mb = 4 kg

Q: Find the force exerted by the biceps muscle in holding a 1.00-L milk carton (weight 9.90 N) with the…

A:

Q: A window washer is standing on a scaffold supported by avertical rope at each end. The scaffold…

A:

Q: The result of couples of forces on rigid body are equilibrium O True O False

A: False

Q: A cook holds a 1.30 kg carton of milk at arm's length. What force Fa must be exerted by the biceps…

A: First, we see the diagram and understand the problem. So, For rotational equilibrium, we have to…

Q: If you are holding a 25lb weight in your hand 30cm from your elbow joint and your biceps brachii is…

A: In this case we have to observe all the torque acting on the body. Let us suppose elbow join as the…

Q: 37 F

A:

Q: Find the force exerted by the biceps muscle in holding a 100-L milk carton (weight 9.90 N) with the…

A:

Q: cm from the elbow, and the biceps muscle can supply a maximum force of 775. N (with the forearm in a…

A: Given:- The forearm has a mass of 5.00 kg. The distance from the elbow to the hand is 34 cm. If the…

Q: calculate the force exerted on the elbow joint.

A: Given Data: The mass of hand is, ma=2.5 kg The mass of a book is, mb=4.0 kg   From the figure given…

Q: As a part of his daily workout routine, he lifts 10-kg dumbbells on each hand. His hands and…

A: Draw a free-body diagram of the hand.

Q: To pull with a force F=160 N on the scale as shown, what should the tension in your biceps muscle…

A:

Q: Tensile force tends to cut the body in two. (true or false?)

A: If equal and opposite forces are applied to a body they tend to elongate it, such type of force is…

Q: Suppose you are standing on the floor doing your daily exercises. For one exercise, you lift your…

A: The force excerted by the deltoid muscle, F 210  at an angle of (theta)o above the horizontal on the…

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).