ed, and exerted re the 31 cm ball ion Axis of rotation 2.5 cm (at elbow) Triceps muscle FIGURE 8–46 Problems 35 and 36.

Q: (III) Suppose a 65-kg person stands at the edge of a 5.5-mdiameter merry-go-round turntable that is…

A: Given: Mass of the person = 65 Kg The diameter of the merry go round turntable = 5.5 m Moment of…

Q: Ann and Mary are see-sawing on a playground. The uniform plank of the see-saw weighs 300 N and…

A: Given data: -  The weight of the uniform plank of the see-saw is W = 300 N. The mass of the Ann is…

Q: A woman holds a 2.0-m-long uniform 10.0-kg pole as shown in Fig. 9–78. (a) Determine the forces she…

A: Given :-Length of the pole is 2.0 m mass of the pole is 10.0 kg

Q: onsider a force F = 80 N applied to a beam as shown in Fig. 8–37. The length of the beam is l = 5.0…

A: Force applied  F = 80N Length of rod =5m θ=37°

Q: (I) Calculate the mass m needed in order to suspend the leg shown in Fig. 9–47. Assume the leg (with…

A: Introduction:Torque is the torsional force acting on the object which causes body to rotate. Torque…

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

A: The expression for torque is,

Q: What does an unbalanced torque result in?

A: We know the mathe matical expression for torque  which is given by- T=IαWhere,I=moment of…

Q: Under what conditions can a rotating body be in equilibrium? Give an example.

A: Given:  Rotating body

Q: 10. (II) A rotating merry-go-round makes one complete revo- lution in 4.0 s (Fig. 8–41). (a) What is…

A:

Q: Two equal and opposite forces each of magnitude 40N are applied to the rim of a wheel makes 12…

A: magnitude of forces are 40N . no. of revolutions 12.

Q: 26. (III) Two wires run from the top of a pole 2.6 m tall that supports a volleyball net. The two…

A:

Q: (II) A softball player swings a bat, accelerating it from restto 2.6 rev/s in a time of 0.20 s.…

A: Given the initial angular velocity is zero, and the velocity at 0.20 s is 2.6 rev/s. Therefore,…

Q: This is a drawbridge, held in place by a cable. The hinge is frictionless. This problem and the next…

A: The torque is  radial force that help body to rotates about its own axis or any other fixed axis…

Q: Can the mass of a rigid object be considered concentratedat its CM for rotational motion? Explain

A: Rotational motion

Q: Normally the center of gravity of a human is about an inch below the navel in the center of the…

A: Center of gravity of human is balance point where lower and upper body weight balanced. Normally it…

Q: (II) Two blocks are connected by a light string passing over a pulley of radius 0.15 m and moment of…

A:

Q: In terms of center of gravity, support base, and torque, why can you not stand with heels and back…

A: The vertical line through the center of gravity of the person’s body will be in front of the tip of…

Q: Can a force produce a torque when there is no lever arm?

A: The torque is the rotational force or the force that tends to cause rotation. The expression for the…

Q: (a)The moment arm of 35 N force, 20 N force and 40 N force respectively are? (b) Net torque about an…

A:

Q: (II) How close to the edge of the 24.0-kg table shown in Fig. 9–54 can a 66.0-kg person sit without…

A:

Q: Does torque and force applied has a direct relationship? wherein when increasing the torque, the…

A: Torque is referred to as the rotational equivalent of force. A force is applied to a body in linear…

Q: (II) Three children are trying to balance on a seesaw, which includes a fulcrum rock acting as a…

A: Given data *Mass of boy A is mA = 45 kg *Mass of boy B is mB = 35 kg *Mass of girl is mC = 25 kg…

Q: Does pulling at a bigger angle generate more torque? I know force and the length of the lever arm…

A:

Q: When a motorcycle accelerates rapidly from a stop it sometimes“pops a wheelie”; that is, its front…

A: The forward force in the ground level is what accelerates a motorcycle. The center of mass of the…

Q: Is the net torque changed when a partner on a seesaw stands or hangs from her end instead of…

A: No, if one simply hangs or stands, the force on the lever arm does not change. As, torque stands for…

Q: (I) What is the mass of the diver in Fig. 9–49 if she exerts a torque of 1800 m · N on the board,…

A:

Q: 80. When a wood shelf of mass 6.6 kg is fastened inside a slot in a vertical support as shown in…

A: (a) Consider the FBD of the problem as given below:     Here, FL, FR, and W are the force on the…

Q: (III) An Atwood machine consists of two masses, ma = 65 kg and mg = 75 kg, connected by a massless…

A: The mass of block A,   The mass of block B,   The mass of the pulley,   The radius of the pulley,

Q: tia 10 kg m² Vigt is the required average power? g at 50 rad/s. It must be brought to stop in 10 s.…

A: Work done on a body is equal to the increase in the energy of the body, for work transfers energy to…

Q: Can a set of forces have a net torque that is zero and a net force that is not zero?

A: Torque is the quantity that causes an angular acceleration. It measures the force that is required…

Q: (II) A centrifuge rotor rotating at 9200 rpm is shut off andis eventually brought uniformly to rest…

A:

Q: 3) The hinged plate is supported by the cable AB as shown. If the force in the cable is F= 510 N,…

A: Given Data: Force on the cable (F) = 510 N. To Determine: (a). Force directed from A towards B.(b).…

Q: s how the center of gravity and area of support affects the equlibrium state of a moving car vehicle…

A: The Centre of gravity is a theoretical point in the body where the total weight of the body is…

Q: Can you explain why does the moment of x-component of force P is negative? Explain and illustrate…

A:

Q: rotating at 50 rad/s. It must be brought to stop in 0 s. A flywheel of moment of inertia 10 kg m² .…

A:

Q: Give an example of a system in which the net torque is zero but thenet force is nonzero

A: Let us consider a rod.

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: (II) A 0.72-m-diameter solid sphere can be rotated aboutan axis through its center by a torque of…

A: Angular acceleration is, α=2θt2=2160 rev15.0 s2=2160 rev2π rad1 rev15.0 s2=8.936 rad/s2

Q: (III) A 1.80-m-long pole is balanced vertically with its tipon the ground. It starts to fall and its…

A: The lower end of the pole doesn't slip on the ground so there is no friction. Therefore, the…

Q: 53. A disk and a hoop roll down an inclined plane. If the plane is inclined at an angle of 30° from…

A:

Q: (II) A ball of mass M and radius r on the end of a thin massless rod is rotated in a horizontal…

A: