The driveshaft of a car rotates at 450 radians per second with a torque of 150 Newton-meters. How much power is produced?

Q: A solid ball of mass 6 kg, rolls down a hill that is 9 meters high. What is the rotational KE at the…

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Q: A torque of 170 N.m does 4715 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: Given : τ = 170 N.m W = 4715 J Ki = 1320 J

Q: A 646 g, 17.4 cm diameter cylinder rolls across a table at 2.00 m/s. What is the cylinder's kinetic…

A: Mass of the cylinder (M),

Q: An athlete in a gym applies a constant force of 50 N to the pedals of a bicycle to keep the rotation…

A: Length of pedal arm is r = 30 cm = 0.3 m Force applied on the wheel is F = 50 N

Q: What is meant by the 'lever arm' of a torque?

A: It is the perpendicular distance from the rotational axis to the line along which the force acts.

Q: A wheel that initially rotates 22.9 rad/sec comes to rest after 5 seconds, How mar revolutions does…

A: The equation of motion for rotational motion are  w=wo + α tθ = wo t + 0.5αt2w2 = wo2 + 2 α θ…

Q: Torque is the A rotational analogue of Force (F) in linear motion. B rotational analogue of Momentum…

A: Answer-option (C)

Q: A torque of 170 N.m does 4617 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: To answer the question, we will use the work-energy theorem.

Q: The turntable in a microwave oven has a moment of inertia of 0.038 kg⋅m2 and is rotating once every…

A: Given, moment of inertia =0.038 kg.m2time period T =5.0 secwe have to calculate the kinetic energy.

Q: Two gears are adjusted so that the smaller gear drives the larger​ one, as shown in the figure. If…

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Q: A bowling ball of mass 7.24 kg and radius 10.7 cm rolls without slipping down a lane at 2.80…

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Q: A figure skater is spinning and moves her arms in so that her rotational inertia is decreased by a…

A: As external torque is zero in this case,  Conservation of angular momentum can be applied that means…

Q: You grabbed a power drill that claims it can reach 1940 rpm in 0.4 s.  How many revolutions  does…

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Q: A motor is supplying 60 Nm of torque to its load. If the motor’s shaft is turning at 1,800 rpm, what…

A: Given data:  Torque (τ) = 60 Nm Angular velocity (ω) = 1800 rpm Required: The mechanical power to…

Q: A machine has a rod-shaped steel blade that rotates about its center.  The mass of the blade is 0.70…

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Q: A moment of 15 ft-lbs is required to cut a thread on the end of a pipe. If the handles on the die…

A: We can calculate the required force by using the equation of torque

Q: When a carpenter shuts off his circular saw, the 10.0-inch-diameter blade slows from 4148 rpm to…

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Q: Torque is the rational analog of a. Acceleration  b. Force c. Kinetic Energy  d. Linear Momentum

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Q: Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions about a…

A: Given : A point on a bicycle wheel completes exactly four revolutions around a fixed axis. To find :…

Q: A machine has a rod-shaped steel blade that rotates about its center.  The mass of the blade is 0.50…

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Q: A 6kg hoop 3m in diameter rolls down a plane inclined 40 degrees. At the bottom of the incline, what…

A: Given: The mass of the hoop m = 6 kg The radius of the hoop r = 1.5 m The horizontal distance  d = 3…

Q: In a two-pulley system, the centers of the pulleys are 20 inches apart. If the radius of each pulley…

A: Given:-                    In a two-pulley system, the centers of the pulleys are 20 inches apart.…

Q: Two pulleys have radii 29 cm and 18 cm,  The larger pulley rotates 26 times in 20 seconds.  Find the…

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Q: When a torque does work on a rotating rigid body, what is the effect on kinetic energy?

A: When a rigid body is rotating abound a fixed axis with an angular velocity w, then a torque is…

Q: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

A: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

Q: A wheel that initially rotates 4.7 rad/sec comes to rest after 5 seconds, How many revolutions does…

A: The equations of angular motion we use to solve this are ωf = ωi + αt ωf2-ωi2 = 2αθ, where ωf = the…

Q: An electric fan spinning with an angular speed of 12 rad/srad/s has a kinetic energy of 4.1 J .

A: Given: angular speed ω =12 rad/s kinetic energy K =4.1 J

Q: A wheel as shown below, has a thin 3.0 kg rim and four spokes, each of mass 1.2 kg. The aiameter of…

A: Kinetic energy of the wheel is sum of rotational and translational kinetic energies…

Q: The rotational inertia depends on: mass and how mass is distributed around the axes of rotation mass…

A: I = sum{Mi Ri 2} Here Inertia depends only on mass and the distribution of the body...  Description…

Q: A torque of 170 N.m does 3036 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: Given, Torque = 170 N.m  Work done by torque on rotating flywheel = 3036 J  Initial Kinetic energy =…

Q: A solid ball of mass 5 kg, rolls down a hill that is 6 meters high. What is the rotational KE at…

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Q: What is the speed of a 15 kW machine that supplies 10 ft-lbs of torque?

A: Given: The power of the machine is 15 kW. The torque supplied by the machine is 10 ft-lbs.…

Q: rotational kinetic energy

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Q: It is the property of the body to resist a rotation. A Moment of Inertia (B Rotational KE C Angular…

A: When a body try to rotate then it has a angular acceleration. and Moment of Inertia is the property…

Q: angular momentum remains the same, rotational kinetic energy increases angular momentum remains the…

A: When girls moves outside then perpendicular distance from center is increases and Angular momentum…

Q: A torque of 170 N.m does 4602 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: Given  Work done W=4602J Initial kinetic energy Ki=1289J

Q: When a rope is wrapped around a wheel (or pulley) and pulled, the lever arm is the ________  of the…

A: The liver arm is the perpendicular distance from the axis of rotation to the line of action 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: radius (r) = 0.5 m mass (m) = 100 kg Angular speed (ω) = 50 rpm

Q: A bowling ball of mass 7.20 kgkg and radius 10.7 cmcm rolls without slipping down a lane at 2.90…

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Q: Find the required torque to drive a 5kg car up a 20 degree incline

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Q: A rotating wheel has a kinetic energy of 135 J when its rotating at an angular speed of 30 rad/s.…

A: In this question, we are dealing with the rotational motion. Given: Kinetic energy, K=135 J Angular…