A wheel with a radius of 0.4 meters initially at rest and begins to accelerate at 4 rad/s2. If the same constant torque was applied at the edge of the wheel, which of the following changes would decrease the acceleration of the wheel? (Select two right answers) Increase the radius of the wheel Decrease the mass of the wheel Increase the mass of the wheel Decrease the radius of the wheel

A wheel accelerates with a constant angular acceleration of 2 rad/s2. If the initial angular velocity is 4.0 rad/s, (a) what is the angular velocity at t = 5.0 s? (b) What is the angle the wheel rotates through in 5.0 s? (c) If the torque added to the wheel is 15 Nm, what is the moment of inertia of this wheel?

A turn table starts from rest and reaches 11 rad/s of angular velocity in 9.0 s. Find the total angle it turned during the time in rad. Hint: use rotational kinematics formula. Assume initial angle and initial angular velocity as zero.   Your Answer:

What is the moment of inertia ? of an object that rotates at 14.0 rev/min about an axis and has a rotational kinetic energy of 24.0 J?

A wheel starts from rest and uniformly increases angular speed to 0.23 rev/s in 25 s.   (a) What is its angular acceleration in radians per second per second? _______rad/s2   (b) Would doubling the angular acceleration during the given period have doubled final angular speed? Yes or No

A flywheel of mass 186 kg has an effective radius of 0.620 m assume that the mass is concentrated along a circumference located at the effective radius of the flywheel What constant torque is required to bring the wheel from rest to an angular speed of 147 rev/min in a time interval of 30.0 s? answer in Nm

A merry-go-round accelerates from rest to 0.72 rad/s in 37 s. Assuming the merry-go-round is a uniform disk of radius 8.0 m and mass 3.20×104 kg , calculate the net torque required to accelerate it.

The tires on a car have a diameter of 0.70 m. If the car moves in a straight line with a speed of 25.2 km/h through a level parking lot, what is the angular speed of the tires?

The tires of a car make 85 revolutions as the car reduces its speed uniformly from 87.0 km/hkm/h to 58.0 km/hkm/h. The tires have a diameter of 0.82 mm. What was the angular acceleration of the tires? If the car continues to decelerate at this rate, how much more time is required for it to stop? If the car continues to decelerate at this rate, how far does it go? Find the total distance.