Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. The trucks are charged by using an electric motor to get the flywheel up to its top speed of 1,000.0rad/s. One such flywheel is a solid disc, rotating about its central axis, with a mass of 1,010.0kg and a radius of 1.2m. What is the kinetic energy (in J) of the flywheel after charging?

Q: A disk with a mass of "m" kg and radius of "r" meters (l =1/2mr^2) rolls without slipping at "v"…

A:

Q: You push a .50kg block against a spring (k=3100 N/m),compressing it by .12m. The block is then…

A: The mass of the block, m1=0.50 kg The spring constant, k=3100 N/m The compression of the spring,…

Q: A basketball (spherical shell) with r = 1.4m and m = 2.9kg rotates about its axis due to a…

A:

Q: Q7 A child has a marble racetrack toy. The toy has a marble of mass 0.075g that rolls around a…

A: Concept used: Time depends on amount of rotation of toy. It is independent of mass being traced.

Q: Part A. Compute the torque developed by an industrial motor whose output is 175 kW at an angular…

A: PART AGiven that the power of the motor is 175kW, and the angular speed is 5000rev/min. The…

Q: Jared is on a merry-go-round that has an instantaneous angular speed of 3.99 rad/s and angular…

A: Given data:  Angular speed (ω) = 3.99 rad/s angular acceleration (α) = 0.63 rad/s2 Distance from…

Q: Two masses ma=1kg and mp=5.4kg are connected by a rope that hangs over a pulley as shown in the…

A: M=15 kg  R=0.62 mma=1 kgmb=5.4 kgh=8.5 mIcm=12MR2Equation of motion of ma isTa-mag=maa…

Q: In the figure, two blocks, of masses m=1.69 (kg) and M=3.65 (kg), are connected by a light string…

A:

Q: A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of…

A: Write the given values of the problem- Radius(r)=1.50 m Mass(m)=445 kg f=5750 rev/min

Q: Suppose that the Sun runs out of nuclear fuel and suddenly collapses to form a white dwarf star. The…

A:

Q: n 2010, the Sikorsky's X2 helicopter became the world's fastest helicopter, flying at 249 miles per…

A:

Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The…

A: Moment of inertia of rod = M (L/2)2 Moment of inertia =  0.141 kgm2 α = 6.47/8.27 = 0.7823 Torque of…

Q: A light rod of length ℓ = 1.00 m rotates about an axis perpendicular to its length and passing…

A:

Q: The space agency has sent up a radar satellite. The satellite is known to have a mass of 458.00…

A: 1.The mass of the planet the satellite is orbiting is 5.98 x 10^24 kg. Explanation: The mass of the…

Q: A turntable with a moment of inertia of 0.028 kg∗m^2 rotates freely at 3.3 rad/s. A circular disk of…

A: Given data The initial moment of inertia of the turntable is Ii_t = 0.028 kgm2 The initial angular…

Q: In the figure here, a cylinder having a mass of 2.8 kg can rotate about its central axis through…

A: Given Information:- Mass of the cylinder m=2.8 kg Forces are  F1=9.7 N, F2=8.3 N, F3=1.8 N , F4=4.5…

Q: Two bugs, Buzz and Crunchy, are sitting on a spinning disk on a horizontal plane. Buzz is sitting…

A: given that,r=0.80 mw=38 rpmw=3.979 radsμs=0.80μk=0.60mc=2.0 kg

Q: The wheel in the figure has eight equally spaced spokes and a radius of 45 cm. It is mounted on a…

A: Radius ( R ) = 45 cm Angular speed = 2.4 rev/s Length of arrow ( L ) = 25 cm = 0.25 m

Q: A turntable rotates counterclockwise at 78 rpm. A speck of dust on the turntable is at θ = 0.45 rad…

A: Given data *The angular velocity of the turn table is ω = 78 rev/min = (78 rev/min)(2π rad/rev)(1…

Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The…

A: Given: The length of the rod is 0.769 m. The mass of the rod is 1.19 kg. The initial angular speed…

Q: A string under a tension of 59.0 N is used to whirl a rock in a hortzontal circle of radius 2.45 m…

A: Here is the answer and explaination in the given image

Q: A person holds a bicycle wheel on a frictionless axle over his head so the axle is vertical. The…

A:

Q: A 30-cm-diameter, 1.6 kg solid turntable rotates on a 1.6-cm-diameter, 450 g shaft at a constant 33…

A: Given values:Radius of turntable, r1 = diameter/2 = 15 cm = 0.15 mMass of turn table, m1 = 1.6…

Q: A bicycle travels 227 m along a circular track of radius 29 m. What is the angular displacement in…

A: The relation between the circular arc and the radius is   Arc Length=Radius×Angle

Q: A 80.0 kg passenger is seated 12 m from the center of the loop of a roller coaster. What…

A:

Q: A small object with mass 4.45 kg moves counterclockwise with constant speed 1.60 rad/s in a circle…

A:

Q: A 5 kg ball with a 0.4 meter radius is rolling on a horizontal surface at 3 m/s. The rotational…

A: This question is based on law of conservation of energy and pure rolling motion.

Q: A solid sphere of mass 1 kg and radius = 0.1 m (I = MR2/2) rolls down an inclined plane of height =…

A: The expression for the solid speed of the sphere,

Q: An electric motor is used to drive the shaft of a small water pumpm. During a performance test, the…

A:

Q: Malar is playing with a toy car track set and has made a vetical loop she wants to send a 150-gram…

A: Given of car =150 g Height of which she releases radius o loop =20 cm

Q: An object starts from rest at the top of an inclined plane and moves down. Friction and air…

A:

Q: A block is sliding (without friction) down a ramp. A ring, a disc and a solid sphere are rolling…

A: The speed of any rolling object at the bottom can be expressed using conservation of energy. that…

Q: A young ballerina spins with an angular velocity ω1 = 1,519 rad/s and a radius of inertia 0.201 m.…

A: Given: The initial angular velocity and the radius of inertia is 1.519 rads and 0.201 m…

Q: Three children are riding on the edge of a merry-go-round that is a disk of mass 110 kg, radius 1.1…

A:

Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The…

A: F= 0.234 N

Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The…

A: Length of rod = 0.873 m  Mass of rod = 1.11 kg  Initial angular velocity = 0 rad/sec  Final angular…

Q: A sphere of radius 1.5 m begins spinning clockwise such that a point on it moves at 1.58 m/s. A…

A: Given:-          A sphere radius r = 1.5 m

Q: A spinning wheel that initially rotates at 14 revolutions/sec is braked uniformly to a stop in 6.5…

A:

Q: Problem 5: With the aid of a string, a gyroscope is accelerated from rest to 31 rad/s in 0.36 s.…

A: Given data The initial angular speed of the gyroscope is: ωi=0 rad/s The final angular speed of the…

Q: A metal rod with a length of 27.0 cm lies in the ry-plane and makes an angle of 39.0° with the…

A:

Q: An electric motor is used to drive the shaft of a small water pump During a performance test, the…

A:

Q: computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2 until…

A: Using equation of motion for angular variables, we can get the desired answers.

Q: A golf club strikes a golf ball. The club and the ball remains in contact for 0.6ms. The 35gram ball…

A: Given Data: The time is, t = 0.6 ms. The mass of the ball is, m = 35 g. The speed of the ball is, v…

Q: A 17.5 kg thin spherical shell with radius 1.64 m, is rotating at 152 rev/min. It must be brought to…

A: Given data The mass of the thin spherical shell is M = 17.5 kg The radius of the shell is R = 1.64 m…

Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The…

A: