Choose the BEST answer to the following: The rotational inertial of an object is greater when most of the mass is located (a) near the rotational axis. (b) away from the axis. (c) on the rotational axis. (d) off center.

Q: Which of the following is a scalar? O rotational inertia angular momentum torque force

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Q: A typical small rescue helicopter has four blades: Each blade is 4.00 m long and has a mass of 50.0…

A: Introduction:       Moment of inertia (I) = mass ×distance 2…

Q: The front wheels of a racing vehicle are located far out in front to help keep the vehicle from…

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Q: Kg. m^2 (kilogram. meter square) is the unit of a. moment of inertia O b. rotational kinetic energy…

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Q: What is meant by an angular position?

A: Angular position can be defined as the orientation of an object, with respect to a specific…

Q: An electric motor is spinning at a rate of 60 rpm It then slows down with a constant angular…

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Q: A youngster who has entered a soapbox derby (in which 4-wheel unpowered vehicles roll from rest down…

A: As the moment of inertia is inversely proportional to the rotational speed, decrease in moment of…

Q: A ballet dancer has a moment of inertia of 5 when her arms reach her body and 20  when her arms are…

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Q: Would a torque on the moon occur if the Moon were spherical, with both its center of mass and center…

A: Write the formula for the torque (τ). Here, r is the distance from the COM (center of mass) and the…

Q: Rank the following systems (A, B, C, D) in order of increasing (a) angular speed and(b) angular…

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Q: Why is the wobbly motion of a single star an indication that the star has one or more planets…

A: The center of gravity will be at the geometric center of the star when there is no other planets…

Q: how many physical quantities are present in translational motion? Rotational motion? What are these?

A: There are seven Physical quantities used in translational motion: Displacement velocity…

Q: Calculate the Torque that a child must apply to swing a rock of mass 0.5 kg in a radius 1.16 meters.…

A: mass of rock (m) = 0.5 kg radius (R) = 1.16 m Initial velocity (u) = 0 msfinal velocity (v) = 5…

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

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Q: the moment of inertia.

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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: A student runs around a circle omce in 4 minutes. Her angular velocity is

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Q: What is rotational inertia, and is it similar to inertia as studied in previous chapters?

A: Inertia is the inherent property of a body to oppose any change in it's state of rest or motion.

Q: The moment of inertia

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Q: An ice skater is spinning about a vertical axis with arms fully extended. If the arms are pull in…

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Q: The radius of a flywheel is 0.24 m. If the angular speed of the wheel is 3,408 rpm. Calculate the…

A: Given, the radius of flywheel , r = 0.24m The angular speed ,ω= 3408 rpm = 3408 revolution per…

Q: The conservation of angular momentum states that if a body contracts (gets smaller), its speed of…

A: This equation says that the angular velocity is inversely proportional to the moment of inertia.…

Q: What is rotational inertia, and it is similar to inertia?

A: Rotational inertia depends on the distribution of mass about an objects axis of rotation.

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: What is the torque required to accelerate a rotating object if it starts rotating at 10 degrees per…

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Q: Which is the change in the angle as an object rotates?

A: Which is the change in the angle as an object rotates? The angular displacement is the change in the…

Q: While riding on a carnival Ferris wheel, Sam Nasty horses around and climbs out of his chair and…

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Q: . If a trapeze artist rotates twice each second while sailing through the air and contracts to…

A: Given rotational velocity ω = 2 rev/s with Rotational Inertia I and then the trapeze artist…

Q: When a long-range cannonball is fired toward the equator from a northern (or southern) latitude, it…

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Q: Which of these units of angular measure?

A: The anglular measure is defined as the opening between two lines which meet at a point Unit for…

Q: When a car drives off a cliff it rotates forward as it falls. For a higher speed off the cliff, will…

A: After driving off a cliff, the front wheels lose contact with the edge of the cliff, so the ground…

Q: What is law of inertia for rotating systems in terms of angular momentum?

A: According to Law of conservation of angular momentum if there is no unbalanced external torque acts…

Q: A 10 kg wheel of radius 0.5 m rotates at an angular speed of 10 rad/s. Find the centripetal force (…

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Q: When a bowling ball leaves your hand, it may not spin. But farther along the alley, it does spin.…

A: Torque is a measure of the force that can cause an object to rotate about an axis Torque is a vector…

Q: A car is travelling at a speed of 150 kph in a super hi-way. Find the angular velocity of its tires…

A: solution as

Q: You sit at the middle of a large turntable at an amusement park as it is set spinning and then…

A: When we crawl toward the edge of the turntable, the rotational inertia of the system is increased…

Q: Would the moment of inertia of a rotating disk be smaller or larger if the rotational axis was…

A: Moment of Inertia of a rotating disc with the axis passing through its center is given by

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.