Study the turning effect of force.

Q: -55.0-kg woman stands at the rim of a horizontal turntable having a ertical axle through its center.…

A: The questions are answered below

Q: Is the speed of A 2x as fast as B?

A: All points on the tunable rotate through the same angle in the same time, so the angular velocity of…

Q: Consider a heavy crate resting on the bed of a flatbed truck. When the truck accelerates, the crate…

A:

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 measure of the effectiveness of the force in producing rotation about an axis

A: Torque gives the measurement of the effectiveness of the force in producing rotation about an…

Q: The rotational inertia of an object depends on which of these? How fast it is spinningNone of the…

A: Moment of inertia is called rotational inertia. Its symbol is I and given by MR2 . I=MR2 So…

Q: In order to prevent muscle contraction from misaligning bones during healing (which can cause a…

A:

Q: The hand on a circular spinner is 2 inches long. The spinner is divided into 8 equal sections. What…

A: For small angle approximation,∆θ=∆sr

Q: What causes water to be removed from clothes in a spin-dryer?

A: in a spin dryer

Q: The wheels of railroad trains are tapered, a feature especially important on curves. How, if at all,…

A: There will be a change in diameter of the wheel when there is tapering of the wheels of the railroad…

Q: Scissors are like a double lever system. Which of the 2 levers a fulcrum ( nail puller) or a wheel…

A:

Q: figure below shows a freely rotating pulley of radius R. On the right side of the pulley hangs a…

A: For equilibrium net force as well as net torque acting on the body must be zero and horizontal as…

Q: A wheel is released from the top on an incline. Is the wheel most likely to slip if the incline is…

A:

Q: Two children are sitting perfectly balanced on a seesaw. One child weighs 32 pounds and is 2.25…

A:

Q: A long piece of lumber is pivoted to rotate about a perpendicular axis. Ropes are attached to the…

A: Given that:θ=72°Mass of wood, m=0.75 kgLength of wood, L=2.30 mMass of cylinder, M=0.800 kgDiameter,…

Q: Why are mud guards used over the rotating wheel of the vehicles?

A: The mud particles, gravel and water on the rotating wheel are in circular motion where the velocity…

Q: sion T in the cable which supports the 1000-lb load with the pulley arrangement shown. Each pulley…

A: ∑M=0T1-T2=0T1=T2∑Fy=0T1+T2-1000=02T1=1000 T1=500 lbT1=T2=500 lbT3=T4=T22=250 lbTherefore, the…

Q: If you have a spinning wheel and want to stop it by touching it, where will it be most effective to…

A: in this type of question  we discuss  about apply force against system.

Q: When a force F acts on a body, the perpendicular distance from the axis of rotation to the line of…

A: Definition of torque: Torque is defined as the product of force and perpendicular distance from the…

Q: Which of the following are in equilibrium? Choose all that apply. (NOTE: "spinning up" means the…

A: Equilibrium : A condition in which competing forces or acts are balanced, with neither being…

Q: Why are lightweight tires preferred over lightweight frames in bicycle racing?

A: The use of lightweight tires over the lightweight frames in bicycle racing is related to the concept…

Q: Which of the following are conditions for equilibrium? Mark all that apply. The net momentum is…

A: At equilibrium condition, The net force is equal to zero.

Q: The platform supports the 3 loads shown. Fine the normal reactions on each of its 3 wheels. 500 Ib…

A: As the platform is stable and stationary, it means the platform is not experiencing any non-zero…

Q: In order to prevent muscle contraction from misaligning bones during healing (which can cause a…

A: In order to maintain equilibrium, weight of W must be equal to weight of the leg. Therefore, W =…

Q: crane has an arm length of 20 m inclined at 30deg with the vertical. It carries a container of mass…

A:

Q: When a moving car encounters a patch of ice the brakes are applied. Why is it desirable to keep the…

A: Static friction is greater than kinetic friction because it takes more energy to move the static…

Q: An orangutan leaps off of a cliff and its body begins to rotate clockwise. If the orangutan then…

A: Solution: We are given that the orangutan leaps off a cliff and then its body begins to rotate…

Q: A disk with a mass of 29 kg and a radius of 31 cm is mounted on a frictionless horizontal axle. A…

A: Given,

Q: Also known as Rotational Inertia

A: The moment of inertia of a body is defined as the product of mass and the square of the distance…

Q: the period of rotation around their center of mass once the

A:

Q: A spring balance which is used for long time, shows wrong readings. Why?

A:

Q: The three cups are rolled on a level surface. Rank the cups by the amount they depart from a…

A: From the given diagram, the amount they depart from the straight line path is clear.

Q: There are two propellers in a helicopter. Why?

A: If only one motor is mounted on helicopter then helicopter will turn in opposite direction for…

Q: Weights of 0.2 kg and 0.1 kg are attached to the weightless and inelastic thread. The thread passes…

A: Free body diagram of system:

Q: A 6 ft board with mass of 2 kg is horizontal and attached to a swivel on one side, the other is…

A: The potential energy of the center of mass of the board is converted into kinetic energy. mgh=12mv2

Q: A supertanker uses a windlass (a type of winch) like the one shown in the figure below to hoist its…

A: The free-body diagram of the system is shown below. Here, m is the mass of an anchor and T is the…

Q: Sometimes it is said that water is removed from clothes in the spin dryer by centrifugal force…

A: The statement is not correct. Centrifugal force is an apparent outward force not a real force. There…

Q: What is rolling friction? How does it arise?

A: Rolling friction defined as:

Q: A mass 20.5 kg of wooden block is placed on a lever arm 2.5 meters from the right side of the axis .…

A: Dear student Any object which is in equilibrium satisfies the relation : Net force = 0 and Net…

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.