A 51 kg hoop of radius 1.3 m, initially rotating at 481 revolutions per minute, is brought smoothly to a stop in 12 s. What is the average power (in Watts) associated with the force that brings the hoop to a stop?

Q: A merry-go-round has a mass of 1460 kg and a radius of 7.60 m. How much net work is required to…

A:

Q: In Fig. below, two blocks, of masses 2 kg and 3 kg, are connected by a light string that passes over…

A: Assume that the final position of the block of mass 2.00 kg is the datum point. Both the blocks will…

Q: A 1.7 kg solid sphere (radius = 0.20 mm ) is released from rest at the top of a ramp and allowed to…

A: When the sphere is at the top of the ramp and it is at rest, its kinetic energy is zero. Thus, the…

Q: A disk of mass 2.00 kg and diameter 50.0 cm is rotating without slipping across a level floor at a…

A:

Q: A water wheel with radius Rw = 1.1 m and mass Mw = 1.7 x 103 kg is used to power a grain mill next…

A:

Q: An object with a mass of m=5.10 kg is attached to the free end of a light string wrapped around a…

A:

Q: Re As shown below, a hollow cylinder with a mass 0.354 kg and an inner radius of 20 cm and an outer…

A: Moment of inertia of a hollow cylinder of mass M with inner radius "a" and outer radius "b" is given…

Q: A merry-go-round has a mass of 1440 kgkg and a radius of 7.70 mm . A.How much net work is required…

A:

Q: How much energy is dissipated when a 2 kg grinding wheel of radius 0.1 m is brought to rest from an…

A: The kinetic energy of rotation is given by  K = 0.5 I w2 where, I is the moment of inertia and w is…

Q: A disk of mass 2.00 kg and radius 0.250 m is rolling (without slipping) across a floor with a linear…

A: A disk weighting 2 kg rolls without slipping across a floor with a speed of 5m/s  Total kinetic…

Q: A thin, hollow sphere of mass 1.70 kg and radius 0.640 m is rolling on a horizontal surface with a…

A: Given data The mass of the sphere is m=1.70 kg The radius of the sphere is r=0.640 m The angular…

Q: What is the kinetic energy of a 120-cm thin uniform rod with a mass of 450 g that is rotating about…

A: solution is given as

Q: A hoop of mass 4 kg and radius 0.1 m is rolling without slipping. It has a translational speed of v=…

A:

Q: A 10.6-kg cylinder rolls without slipping on a rough surface. At an instant when its center of…

A:

Q: 3 m 5 kg 6 kg 2 m 5 m 4 kg

A: Given: The masses of the objects are 4 kg, 5 kg, and 6 kg. The distance of the masses from the axis…

Q: In the figure here, a solid brass ball of mass 0.371 g will roll smoothly along a loop-the-loop…

A: (a) When the ball is at the top of the loop and is about to leave the track, gravitational force…

Q: In the figure here, a solid brass ball of mass 0.284 g will roll smoothly along a loop-the-loop…

A:

Q: A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk…

A:

Q: A 2.25 kg hoop rolls without slipping across a level surface, translating at 4.25 m/s. If the hoop's…

A:

Q: A propeller is modeled as five identical uniform rods extending radially from its axis. The length…

A: Given: The mass (M) of each rod is 2.91 Kg. The length (L) of each rod is 0.757 m. The propellor is…

Q: please answer both questions

A:

Q: A potter's wheel is rotating around a vertical axis through its center at a frequency of 2.0 rev/s.…

A: We'll conserve angular momentum before and after

Q: What is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating…

A: The rod is rotating about its center of mass so it has only rotational kinetic energy.  Kinetic…

Q: As shown below, a hollow cylinder with a mass 0.318 kg and an inner radius of 20 cm and an outer…

A:

Q: A propeller is modeled as five identical uniform rods extending radially from its axis. The length…

A: Moment of inertia of each rod = (1/3) M L2 Therefore, moment of inertia of 5 rods = (5) * (1/3) M L2…

Q: A propeller is modeled as five identical uniform rods extending radially from its axis. The length…

A: Given that: L=0.875 mm=2.71 kgω=519 rpm=519 rpm×2π rev/min60 rpm=54.35 rad/s Here, L, m, and ω are…

Q: A pendulum consists of a rod of length 2 m and mass 3 kg with a solid sphere of mass 1 kg and radius…

A: Moment of inertia of rod: Moment of Inertia of sphere at the end of the rod : Total moment of…

Q: An object of mass 1.5 kg does rotational motion. Its angular velocity is 30 rpm and the radius of…

A: Kinetic energy of the object in rotational motion Krot=12Iω2=12mr2ω2

Q: Consider a 50.0 kg merry go round with a radius of 1.50 rotating at 20.0 rpm with an 18.0 kg child…

A:

Q: A propeller is modeled as five identical uniform rods extending radially from its axis. The length…

A: Length ( L ) = 0.745 m Mass ( m ) = 2.59 kg Moment of Inertia ( I ) = m.L23 Substituting the values…

Q: A merry-go-round has a mass of 1450 kgkg and a radius of 7.50 mm . How much net work is required to…

A:

Q: A .20 kg mass is sitting on a frictionless 1 m long incline and is attached via cable to the inner…

A:

Q: In the figure, two blocks, of masses 2.00 kg and 3.00 kg, are connected by a light string that…

A: Moment of Inertia: moment of inertia is defined as the property of a body that resists the angular…

Q: It took a constant 500 W power to run an engine from rest to its operating speed in 20 seconds. What…

A: “Since you have asked multiple question, we will solve the first question for you. If you  want any…

Q: The following figure shows the cross section of a cylinder of radius 8.8 m rotating about its axis…

A: Given Data : The radius of the cylinder is given as r = 8.8m The angular velocity of the cylinder is…

Q: 1.00 kg solid, uniform disk rolls without slipping across a level surface, translating at 3.00 m/s.…

A: Given value--- mass = 1 kg. speed = 3 m/s. radius = 0.15 m. We have to find--- translational…

Q: A 34 kg hoop of radius 1.3 m, initially rotating at 301 revolutions per minute, is brought smoothly…

A: Given the---- mass = 34 kg radius = 1.3 m rotation = 301 revolution per minute time taken = 20 sec…

Q: A 34.0 kg wheel, essentially a thin hoop with radius 1.50 m, is rotating at 250 rev/min. It must be…

A:

Q: A wheel with a radius of 0.23 m and a mass of 7.31 kg spins about its axis at 6.53 radians per…

A: The mass of the wheel, m = 7.31 kg The radius of the wheel, r = 0.23 m The angular velocity of the…

Q: A potter's wheel is a thick stone of radius 0.5 m with mass 100kg. It freely rotates at 50 rpm…

A:

Q: A solid ball with mass 9.10 kg and radius 2.00 cm is released from rest at the top of a ramp. The…

A: Apply conservation of mechanical energy to the ball rolling down the ramp. -----(1) Here, The…

Q: A car is designed to get its energy from a rotating flywheel in the shape of a uniform, solid disk…

A:

Q: A 4.00 m length of lightweight cord from the spool with a constant acceleration of magnitude 3.00…

A: Length of chord = 4m Radius of cylinder pool = 0.5 m acceleration of chord = 3.0m/s2 Mass = 1.28kg…

Q: A rotating flywheel can be used to store energy. If it is required to store 1.00 × 10^5 J of energy…

A:

Q: To prepare a weaving loom, you wind a length 2.8 m of yarn onto a reel of radius 3.0 cm. This takes…

A: Given data:  Length (L) = 2.8 m Radius (r) = 3.0  cm = 0.030 m Time (t) = 9.3 s Required: Angular…

Q: Trucks can be run on energy stored in a rotating flywheel, with an electric motor getting the…

A: Kinetic energy of a rotating body is given as K.E=12Iω2, where I is moment of inertia of object and…