When a net torque is applied to a rigid object it always produces a 1
1. constant acceleration
2. rotational equilibrium
3. constant angular velocity
4. constant angular momentum
5. change in angular velocity
Homework Answers
When a rigid body is being rotated, every particle within the body will rotate in the same direction, while retaining its original shape. The omega(angular velocity) will remain the same.
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When a net torque is applied to a rigid object it always produces a
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orrect Question 1 0/2p When a net torque (non-zero) is applied to a rigid object, it...
orrect Question 1 0/2p When a net torque (non-zero) is applied to a rigid object, it always produces change in angular velocity constant angular velocity constant linear acceleration rotational equilibrium constant angular momentum correct Question 2 0/2 pts You are struggling to get a rusty bolt loose with a wrench. If you are maxed out on the force you can apply, what could you do/change to increase rotational motion of the bolt? Move your hand away from the bolt Move...
A constant net torque is applied to an object. Which one of the following will NOT...
A constant net torque is applied to an object. Which one of the following will NOT be constant? A) Angular acceleration B) Angular velocity C) Moment of inertia D) Center of gravity
6. A constant net torque is applied to a rotating object. Which of the following best...
6. A constant net torque is applied to a rotating object. Which of the following best describes the object's motion A) The object will rotate with increasing angular acceleration. B) The object will rotate with decr C) The object will have a decreasing moment of inertia D) The objeet will rotate with constant angular velocity E) The object will rotate with constant angular acceleration. easing angular acceleration.
1. A rigid object with moment of inertia 0.4 kg mº is spinning with angular speed...
1. A rigid object with moment of inertia 0.4 kg mº is spinning with angular speed of 0.2 rad/s around a fixed axis. A constant torque of 0.6 Nm is applied that increases the rotation speed of the object (no other force is present). (i) Calculate the angular acceleration of the object. (ii) Calculate the angular speed of the object at t = 4 s. (iii) Calculate the angle spanned by the object from 0 s to 4 s.
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be its angular acceleration? a) 37.5 rad/s2 b) 59.3 rad/s2 c) 89.0 rad/s2 d) 178 rad/s2 2. When an object is in static equilibrium a) the net force on it is zero b) the net torque on it is zero c) the net force and net torque are zero d) not enough...
2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate...
2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate around a fixed axis passing through its center (I = 2/5 mR2). The sphere is initially at rest. A force of 4 N is applied at the edge (or equator) of the sphere, tangent to the sphere and perpendicular to the sphere radius, generating a constant torque for 3 s. (i) Calculate the magnitude of the angular acceleration of the sphere. (ii) Calculate the...
True and False: 4 Points Fach Any answerS NOT recorded on the Scantron answer page 1....
True and False: 4 Points Fach Any answerS NOT recorded on the Scantron answer page 1. If the vector sum of the external forces on a system is zero, the total momentum of the system is constant. T True F) False 2. In an elastic collision, the total momentum and kinetic energy are conserved. T) TrueF False According to the work-energy theorem for a rotational body, the work done to decrease the angular velocity of a rigid body is positive...
Question 11 1 pts Which statement best describes the motion when there is a net torque...
Question 11 1 pts Which statement best describes the motion when there is a net torque acting on a disk that is free to rotate? The disk is rotating. The tangential velocity is constant The angular velocity is constant. There is a change in the angular velocity
1.) For a rotating rigid body which of the following statements is not correct? a.) all...
1.) For a rotating rigid body which of the following statements is not correct? a.) all points along a rotating rigid body move with constant speed b.) points along a rotating body move through the same angle in equal time intervals c.) point along a rotating body have velocities that continuously change directions d.) all of the above 2.) Which of the following quantities will impact how a rigid body's rotational speed can change? a.) the body's rotational inertia b.)the...
If the net torque on a rotating object is zero, the angular velocity of the object...
If the net torque on a rotating object is zero, the angular velocity of the object cannot change. True or False? Explain A. True , Explan: _________ B False , Explan: _________ (I know the answer is B, I need help on explanation) Thanks
orrect Question 1 0/2p When a net torque (non-zero) is applied to a rigid object, it always produces change in angular velocity constant angular velocity constant linear acceleration rotational equilibrium constant angular momentum correct Question 2 0/2 pts You are struggling to get a rusty bolt loose with a wrench. If you are maxed out on the force you can apply, what could you do/change to increase rotational motion of the bolt? Move your hand away from the bolt Move...
6. A constant net torque is applied to a rotating object. Which of the following best describes the object's motion A) The object will rotate with increasing angular acceleration. B) The object will rotate with decr C) The object will have a decreasing moment of inertia D) The objeet will rotate with constant angular velocity E) The object will rotate with constant angular acceleration. easing angular acceleration.
1. A rigid object with moment of inertia 0.4 kg mº is spinning with angular speed of 0.2 rad/s around a fixed axis. A constant torque of 0.6 Nm is applied that increases the rotation speed of the object (no other force is present). (i) Calculate the angular acceleration of the object. (ii) Calculate the angular speed of the object at t = 4 s. (iii) Calculate the angle spanned by the object from 0 s to 4 s.
True and False: 4 Points Fach Any answerS NOT recorded on the Scantron answer page 1. If the vector sum of the external forces on a system is zero, the total momentum of the system is constant. T True F) False 2. In an elastic collision, the total momentum and kinetic energy are conserved. T) TrueF False According to the work-energy theorem for a rotational body, the work done to decrease the angular velocity of a rigid body is positive...
Question 11 1 pts Which statement best describes the motion when there is a net torque acting on a disk that is free to rotate? The disk is rotating. The tangential velocity is constant The angular velocity is constant. There is a change in the angular velocity
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