A car initially traveling at 24.2 m/s undergoes a constant negative acceleration of magnitude 2.10 m/s? after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.325 m? 69.4 rev (b) What is the angular speed of the wheels when the car has traveled half the total distance? Your response differs from the correct answer by more than 10%. Double check your calculations. rad/s Need Help? Read It

A child pushes a merry-go-round from rest to a final angular speed of 0.760 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 2.00 revolutions. What is the angular acceleration of the merry-go-round?

A safety device brings the blade of a power mower from an initial angular speed of v1 to rest in 1.00 revolution. At the same constant acceleration, how many revolutions would it take the blade to come to rest from an initial angular speed v3 that was three times as great, v3 = 3v1?

An electric fan is running on HIGH. After the speed setting is changed to LOW, the angular speed reduces to 800 rpm in 1.75 s. If the angular deceleration is a constant 42.0 rad/s², then find (a) the initial angular speed of the fan (when it was on HIGH) and (b) the number of revolutions that the fan turned through as it slowed from HIGH to LOW. (c) Include a diagram of the situation.

A centrifuge in a biology laboratory rotates at an angular speed of 3,500 rev/min. When switched off, it rotates 54.0 times before coming to rest. Find the constant angular acceleration of the centrifuge (in rad/s2). Consider the direction of the initial angular velocity to be the positive direction, and include the appropriate sign in your result. rad/s? Need Help? Read It

A car initially traveling at 30.2 m/s undergoes a constant negative acceleration of magnitude 1.70 m/s2 after its brakes are applied.   (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.330 m? _______ rev  (b) What is the angular speed of the wheels when the car has traveled half the total distance?   _______ rad/s   PLEASE ANSWER ASAP

A centrifuge in a medical laboratory rotates at an angular speed of 3,400 rev/min. When switched off, it rotates through 48.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge.