Part A. Compute the torque developed by an industrial motor whose output is 175 kW at an angular speed of 5000rev/min. Part B A drum with negligible mass, 0.600 m in diameter, is attached to the motor shaft, and the power output of the motor is used to raise a weight hanging from a rope wrapped around the drum. How heavy a weight can the motor lift at a constant speed? Part C At what constant speed will the weight rise?

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

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Q: A frustrated farmer is trying to move a large rock from his land. The stone has a mass of 9.00×102…

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Q: A 1.8 kg solid sphere (radius = 0.10 m ) is released from rest at the top of a ramp and allowed to…

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

A: In performance test, find the rotational speed of the shaft for given data, which is given below…

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: Q3. A car has a 750-kg body, four 20-kg wheels, and a 70-kg driver. The wheels are 1 m in diameter…

A: Mass of the car=750 Kg Mass of the four wheels=4×20=80 Kg Mass of the driver=70 Kg Total mass of the…

Q: If a car engine has a power, P. Write an expression for the time it will take to accelerate from w…

A: We know, power is the rate of change of work for a given time interval. Using the given equation…

Q: 5. A cable is wrapped around a solid cylinder with mass 50kg and diameter 0.12m. The cylinder…

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Q: Question 4 A car is fitted with a flywheel connected to the drive shaft. The flywheel spins with the…

A: mgh(sin 5°)=12mv2+12Iw2   ....(1)moment of disc =12mr2angular velocity w=260…

Q: A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a…

A:

Q: A parent exerts a torque on a merry-go-round at a park. The torque has a magnitude given by r3.00…

A: Given: Magnitude of torque:τ=3.0×θ2+ 12.0×θ -14.0θ in radian

Q: An automobile engine develops a torque of 600 N*m at 4000 r/min. What is the horsepower of the…

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Q: A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a…

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Q: The engine of an aircraft propeller delivers an amount of power 173 hp to the propeller at a…

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Q: Three hoops roll down a hill. They all have the same mass, but one has radius R, one has radius 2R,…

A: Given, Three hoops with varius size of radius is roll down from the hill

Q: turntable is initially at rest and is free to rotate about a frictionless, vertical axle through its…

A: given: mw=75 kgITT=750 kg m2r = 3.50 mvw=0.5 m/s

Q: A solid spherical ball with a mass 1.51 kg and radius 0.40 m rolls without slipping down an incline…

A: mgh=12mv2+12Iω2     gh=12mv2+1225mr2vr2       v=107gh

Q: The 1400-kg mass of a car includes four tires, each of mass (including wheels) 33 kg and diameter…

A: Given Data: Mass of the car (M) = 1400 kg.Mass of the wheels (m) = 33 kg.Diameter of the wheels (d)…

Q: Carlonda has a solid ball that she rolls while teaching class at Carver High School. It has a mass…

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Q: A horizontal vinyl record of mass 0.0759 kg and radius 0.116 m rotates freely about a vertical axis…

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Q: f the mass of the bullet is 12.0 g, find (a) the initial speed of the bullet and (b) the energy…

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Q: 1. Consider a bouncy ball and a metal cylinder on a 20 degree incline. Everyone knows a regular…

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Q: a force 49.5 N tangentially to the edge of the disk to start it from rest. What is the kinetic…

A: GivenWeight of solid disk, W=795 NRadius of solid disk, r=1.47 mForce applied by child, F=49.5…

Q: An automobile crankshaft transfers energy from the engine to the axle at the rate of 128 kW when…

A: The power transfers from the engine to the axle,

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: A multi-blades wind machine has power coefficient Cp = 1A- 0.5 A2 where A is the tip speed ratio.…

A: Given that,Cp=1λ-0.5λ2ω=1 rad/secρ=1.2 kg/m3For maximum power coefficient, We can write,…

Q: 3. Rolling motion of a hoop Using conservation of energy, prove that a hoop released from a vertical…

A: Given data: The vertical height is h.   To be proved: The velocity at the bottom is v=gh.

Q: A solid cylinder and a hollow cylinder have the same mass, same radius, and turn on frictionless,…

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Q: 4. A rectangle with uniform mass distribution is tipped precariously on one edge, as shown. a) Find…

A: (a) Let a denotes the length, b denotes the width of the rectangle, m denotes the mass, Ic denotes…

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

A:

Q: PROBLEM 4 As illustrated in the figure, a uniform solid sphere rolls on a horizontal surface at 25…

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Q: Consider a ball that rolls smoothly down a slope. The ball is released from rest at the top of the…

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Q: A hollow sphere is released from rest at the top of the ramp at the height of 0.21 m. The hollow…

A: Given Data: Ramp height, ht=0.21 m Hollow sphere initial velocity, u=0 Bottom height, hb=0.05 m…

Q: Figure Q2 shows a spool with a mass of 20 kg and a radius of gyration ko = 0.16 m. The 15 kg block A…

A: Solution: a). Initially the spool is not rotating and the block is at touching the spool. As block A…

Q: Item 21 You are designing a rotating metal flywheel that will be used to store energy. The flywheel…

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Q: A flywheel whose moment of inertia / = 200 lb-ft² is spinning at 180 RPM. For a flywheel, KE =…

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Q: A hollow cylinder (hoop), a solid cylinder (disk), and a solid sphere, each of mass M and radius R,…

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Q: 7 kg 3 kg 49° 53° There is no friction in the system above except between the rope and the pulley so…

A: Let M1, M2, and M denote the masses of a large block, small block, and pulley respectively. Let I…

Q: erry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a…

A: Given data: -Weight of solid disk (W) = 795 NRadius of solid disk (R) = 1.53 mTangential force…

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.