Hi I am in phyiscs I, they have the problem an athlete at the gym holds a 2.5 kg steel ball in his hand. His arm is 70 cm long and has a mass of 4.0 kg . The magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor is τ= 31 N⋅m. But, I can't seem to find what is the magnitude of the torque about his shoulder if he holds his arm straight, but 30 ∘ below horizontal? Please include clear details. Thank you!

Q: er four pártičleš thát áre connected by a rod of negligible mass rotating rad about the z-axis with…

A:

Q: A wheel with rotational inertia 47 kg.m2 is mounted on a fixed, frictionless axle. The angular speed…

A:

Q: A torque of magnitude 50Nm acts for 10 seconds to start a small merry-go-round (I = 1/2*m*r^2 ) of…

A: Given data:  Torque (τ) = 50 Nm Time (t) = 10 seconds Moment of inertia (I) = (1/2)mr2 Radius (r) =…

Q: When a moment of torque of magnitude 45.0 N.m is applied to a certain wheel, it acquires an angular…

A:

Q: A light triangular plate OAB is in a horizontal plane. Three forces,F1 =10 N, F2 = 6.1 N, and F3 =…

A: The sum of the torque (net torque) is -0.32 N.m

Q: The tires of a car make N revolutions as the car reduces its linear speed 2vo uniformly from initial…

A: number of revolutions = N angle = 2πN radiansInitial velocity = vofinal velocity = 2vo/3

Q: A wheel (Jac) of radius R = 1 m is acted upon tangentially (ilas) by two forces: F, = 100 N and F2 =…

A:

Q: Determine the moment of inertia of a 7.50 kg sphere of radius 0.451 m when the axis of rotation is…

A: Given data:  A sphere  Mass (m) = 7.50 kg Radius (r) = 0.451 m Required: Moment of inertia about…

Q: Consider two uniform solid spheres where both have the smae diameter but one has twice the mass of…

A:

Q: The wheels of a wagon can be approximated as the combination of a thin outer hoop of radius rh =…

A: Determine the moment of inertia of the old wheel.

Q: A wheel has an initial angular velocity of 30rev/min and then experiences an angular deceleration of…

A:

Q: = (8.55 N )i – (9.95 N Jk acts on a pebble with position vector = (6.87 m )j – m )k, relative to the…

A: Torque τ = r̅ × F̅

Q: A spherical shell with a mass of 0.43 and a radius of 0.27 is to roll across the level ground under…

A:

Q: What will be the moment of inertia,l at the axis of the system given below, If inertia for the solid…

A: Given: The mass of the sphere is M. The radius of the solid sphere is R. The moment of the inertia…

Q: A spherical shell with a mass of 0.4 and a radius of 0.34 is to roll across the level ground under a…

A:

Q: An approximate model fora ceiling fan consists of acylindrical disk with fourthin rods extending…

A: Given data:Mass of the disc, m = 2.50 kgRadius of the disc, r = 0.200 mMass of each rod, M = 0.850…

Q: The wheels of a wagon can be approximated as the combination of a thin outer hoop of radius rh =…

A: Given : Radius of hoop (rh) = 0.421 m Mass of hoop (m) = 5.08 kg Mass of rods (M) = 9.09 kg…

Q: The magnitude of net torque (in N.m) about a point at coordinate 7 (1î + 17) m when two forces F,=…

A:

Q: A smooth rod of mass M, length L = 2(m), is rotated at one end with a constant angular velocity w =…

A:

Q: Find the magnitude of the net torque (in N.m) on the wheel shown in the Figure about the axle…

A: τ1=-aF=-5 cm1 m100 cm36 N=-1.8 N·m This torque produce anticlockwise rotation. It is taken as…

Q: Force F→= (3.73N⁢)î - (1.42N⁢)k̂ acts on a pebble with position vector r→ =(4.57m⁢)ĵ - (8.79m⁢)k̂,…

A: The given values are,

Q: (i) Explain whatismcant by the momant of inertia of a body. (ii) Whay is there no unique value for…

A:

Q: The force F = 2i − j − 5k acts at the point (−5, 2, 1). Find the torque due to Fabout the origin and…

A: The point on which force is applied can be given as, The position vector about the origin is,

Q: A disk of masS m =1 kg and radlus r= 20 cm is rotating in counterdockwise direction with a constant…

A: mass, m = 1 kg  radius, r = 20 cm = 0.2 m  initial angular speed, wo = 20 rad/s  final angular…

Q: A wheel of inner radius r, = 13.0 cm and outer radius r, = 35.0 cm shown in the figure below is free…

A:

Q: A uniform solid disk with radius 11 cm has mass 0.5 kg (moment of inertia I = ½MR2). A constant…

A: a)The of the angular momentum about the center of the disk is,

Q: A cylinder of radius 2.84 cm and a sphere of radius 7.22 cm are rolling without slipping along the…

A: radius of sphere, r1 = 2.84 cm    radius of cyclinder , r2 = 7.22 cm    let the mass of each is m…

Q: The moment of inertia of the slab having mass m and length l about an axis passing through the…

A: Given,

Q: A 37.0 kg person rides the outer edge of a merry-go-round, 1.40 m from the axis. Suppose the m-g-r…

A: We need to use the law of conservation of momentum here. Initially, the inertia would be the sum of…

Q: Oh torque-so, layuan mo ko! Kim opens the refrigerator filled with ice cream with a force of…

A: Given that,  Force (F) = 43.0 N  Distance (r) = 50 cm = 0.5 m  (θ)= 55°

Q: A constant torque of 30.0 Nmappled to a grindstone whose moment of inertia is 0.170 kgm. Using…

A:

Q: orque is zero at an angle of 0 [radians). Oa) What would be the values of the torque at angles Pi/4,…

A: Given  No of turns =N = 50  Length of side = 0.15 m  Current = I= 20.0A Magnetic field =b = 2 T  If…

Q: A particle of mass m = 10 kg is rotating around a point O at a radius r = 10 m. The angular position…

A: differentiation of angular position (θ) with respect to time is angular velocity (ω) dθ/dt = ω ω =…

Q: A wheel of radius R = 10.0cm, mass M 25.0 kg, and moment of inertia I = 0.5kg.m2 is %3D mounted on a…

A:

Q: A thing solid cylinder has a mass 5.17kg and a length 2.57 m. What is its moment of inertia (in unit…

A: Since the solid cylinder is very thin, it is modeled to be a rod. Moment of inertia of the rod about…

Q: The wheels of a wagon can be approximated as the combination of a thin outer hoop of radius rh=0.262…

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: A thing solid cylinder has a mass 6.98kg and a length 1.66 m. What is its moment of inertia (in unit…

A: The length of the thin cylinder is far greater than the radius of the thin cylinder. Thus, the thin…

Q: O Resources Lx Give Up? Hint The wheels of a wagon can be approximated as the combination of a thin…

A:

Q: A wheel of inner radius r, = 14.2 cm and outer radius r, = 35.0 cm shown in the figure below is free…

A:

Q: Force F→=(7.05N⁢)î-(4.15N⁢)k̂ acts on a pebble with position vector r→=(4.18m⁢)ĵ-(6.57m⁢)k̂,…

A:

Q: A coin with diameter 3.0 cm rolls up a 30 degree inclined plane. The coin starts out with an initial…

A: The coin’s radius is, The slope of the inclined plane is, The coin’s initial angular speed is,

Q: 3) 5.00 rad/s. The merry-go-round can be modeled as a disk with a diameter of 4.00 m and a mass of…

A: mass of timmy (mT) = 30 kg diameter of disk (d) = 4 m Radius of disk (R) = 2 m mass of disk (M) = 50…

Q: A wheel of inner radius r, = 13.0 cm and outer radius r, = 35.0 cm shown in the figure below is free…

A:

Q: A student sits on a rotating stoll holding two 8.0kg objects. When his arms are extended…

A: Mass of objects m=8 kg Length of arms L=1.3 m Initial angular speed ω1=1.8 rad/s Moment of inertia…

Q: A wheel of inner radius r, = 14.6 cm and outer radius r, = 35.0 cm shown in the figure below is free…

A: