A metal disc in a playground with a mass of 45 kg and a diameter of 4 meters is rotating on its central frictionless axis with an initial angular velocity of 3 rad/s. A child with a mass of 14 kg suddenly jumps unto the disc and stands on the edge. a.What is the new angular velocity of the disc with the kid on it? b. What is the tangential velocity of the kid as he rides the disc?

Q: Two horizontal rods are each held up by vertical strings tied to their ends. Rod 1 has length L and…

A: Given:Length of rod 1 si L,Mass of rod 1 is M Length of rod 2 is 2L and Mass of rod 2 is 2M.

Q: A force of 16.88N is applied tangentially to a wheel of radius 0.340 m and causes an angular…

A: Given that,Force (F) = 16.88 NAngle (θ) = 90°  Radius (r) = 0.340 m  Angular acceleration (α) = 1.20…

Q: A merry-go-round (m = 500.0 kg and r = 5.0 m) is initially at rest and is put into motion. The…

A: When a body undergoes circular motion about an axis, the rate of change of angular speed with…

Q: An 7.00-cm-diameter, 370 g hollow sphere is released from rest at the top of a 1.90-m-long, 20.0*…

A:

Q: s at his side, on a

A:

Q: A clinical blood centrifuge operates at ω= 1200 rpm. a.) What is the angular velocity measured in…

A:

Q: During a very quick stop, a car decelerates at 6.4 m/s2. Assume the forward motion of the car…

A:

Q: The ball has a mass of 80 grams and is moving 10 m/s. The rod has a mass of 500 grams and a radius…

A:

Q: A. What are the astronauts' new speeds?   B. What is the new rotational energy of the system?…

A: When the net external torque on a system is zero, then the angular momentum of the system is…

Q: The bicycle tire shown has total mass of 1.10 kg and a radius of 12.0 cm. The wheel is initially…

A: As per guidelines, only 3 subparts are solved here. Given, mass, m = 1.10 kg  radius = 12.0 cm =…

Q: A gyroscope slows from an initial rate of 33 rad/s at a rate of 0.54 rad/s^2. a. how long (in s)…

A:

Q: A circular bird feeder 19 cm in radius has rotational inertia 0.17 kg⋅m2. The feeder is suspended by…

A:

Q: A force of 16.88N is applied tangentially to a wheel of radius 0.340 m and causes an angular…

A:

Q: A wheel 1.28m in diameter rotates with an angular acceleration of 2.26 rad/s^2. If the wheels…

A: The given problem can be solved using kinematical equations for rotational motion. These equations…

Q: Q1. You designed an intravascular blood pump to help patients with heart failure. The pump design is…

A:

Q: Considering that there are three children are riding on the edge of a merry-go-round that is a disk…

A: Therefore, the new magnitude of the angular velocity after the child moves to the center is…

Q: Suppose you are whirling the ball at the end of the string with an angular velocity of rad. s Then…

A:

Q: 20. A washing machine spin dries clothes. It starts spinning at 20 rad/s and slows turning through…

A:

Q: Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the…

A: Given,Diameter of fly wheel, D = 1.5 m so, radius, R = 0.75 mMas, M = 250 kgtorque, τ = 50 N .…

Q: A bicycle with 0.80-m-diameter tires is coasting on a level road at 5.6 m/s. A small blue dot has…

A:

Q: A circular flywheel has an angular acceleration which decreases uniformly from 8 rad/s^2 to 2…

A: Given:- Angular acceleration α1= 8 rad/s2α2=2 rad/s2at Time t= 6 second the angula velocity is 42…

Q: How much torque would it take to make the wheel speed up from rest to 1.5 rev/sec in 10 sec? b. Now…

A: The moment of inertia of a rigid body is the sum of the products of the masses of all the particles…

Q: When there is no food in my microwave oven, the acceleration of the turntable is 0.150 rad/s2. The…

A:

Q: A 1.6-kg ball of radius 25 cm rolls across level ground at 4.0 m/s without slipping. What is its…

A: mass = 1.6 kg Radius = 25 cm  = 0.25 m Speed = 4 m/s Using relation between linear and angular speed…

Q: A merry-go-round is spinning at a rate of 3.03.0 revolutions per minute. Cora is sitting 0.50.5 m…

A: Given that distance of Cora from the centre and distance of Cameron from the centre and also given…

Q: The angular velocity of a circular saw blade increases from 0 rad/s to 120 rad/s in 5.4 s. The saw…

A: Given data:  Initial angular velocity (ω0) = 0 rad/s Final angular velocity (ω) = 120 rad/s Time (t)…

Q: A mass of 0.6 kg is located at the end of a very light and rigid rod 50 cm in length. The rod is…

A: (a) The rotational inertia of the system is, I=mr2 The distance of the rotating object from the axis…

Q: ball on the end of a string is moving in a circular motion as a conical pendulum as in the figure…

A:

Q: ball on a string has a moment of inertia of 12.5 kg · m2. It experiences a torque of 5 m N.…

A:

Q: A horizontal platform in the shape of a circular disk is rotating (without friction) about its…

A: Introduction: 1) Moment of Inertia: It is property possessed by the body which resist rotational…

Q: A computer drive disk with a radius of 0.075 m is turned on starting from rest with a constant…

A:

Q: a. Serena Williams and Roger Federer, both retired, are playing a casual game of tennis. Williams…

A:

Q: Two horizontal rods are each held up by vertical strings tied to their ends. Rod 1 has length L and…

A:

Q: Two blocks with masses m1 and m2 are joined by a light string that passes over the pulley with…

A: Given information :- masses of the two blocks m1 and m2 angular acceleration of pulley = α radius of…

Q: A Ferris wheel is rotating with an angular speed of 0.240 rad/s. An angular acceleration of 0.030…

A: Here we use equation of motion that can be applied only for constant angular acceleration

Q: Mary and her younger brother Alex decide to ride the 17-foot-diameter carousel at the State Fair.…

A: (a) In a uniform circular motion, angular velocity is uniform. This means equal changes in angular…

Q: A 500 kg vehicle travels with velocity V0 = 10 m/s i. It is struck in the rear by a car so that it…

A: Given  Mass of vehicle, m=500kg Initial velocity of vehicle v0=10 m/s Final velocity of vehicle when…

Q: At the instant shown in figure, the slender rod is vertically at rest. Length of the rod is L cm,…

A:

Q: An flywheel has an initial angular velocity of 10.1 Rad/s in the clockwise direction. If the…

A: initial angular speed (w) = -10.1 rad/secangular acceleration (α) = 4.28 rad/s2time (t) = 6.04…

Q: Wind generated 6.6% of the world’s electricity in 2021. The large-scale turbines generally rotate at…

A:

Q: Elgato has a flywheel. It rotates about its central axis. It starts from a rest and accelerates…

A: Given Initial angular velocity ωο = 0  final angular velocity ω = 70.9 rad/s   number of ravolution…

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.