A ball of radius 0.200 m rolls witha constant linear speed of 2.80 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.20 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? e = i

An ultracentrifuge accelerates from rest to 109700 rpm in 2.05 min. ω = 109700 rpmt = 2.05 minl = 9.4 cma. What is its angular acceleration in rad/s2? α =b. What is the tangential acceleration of a point 9.4 cm from the axis of rotation in m/s2? at =c. What is the centripetal acceleration in multiples of g of this point at full speed? a/g =

A “blink of an eye” is a time interval of about 150 ms for an average adult. The “closure” portion of the blink takes only about 55 ms. Let us model the closure of the upper eyelid as uniform angular acceleration through an angular displacement of 15.4°. a. What is the value of the angular acceleration the eyelid undergoes while closing?  answer in rad/s^2 b. What is the tangential acceleration of the edge of the eyelid while closing if the radius of the eyeball is 1.25 cm? answerin m/s^2

A bus is traveling at a speed of 20.0 m on a straight horizontal road. The wheels have a radius of 0.400 m. If the bus speeds up with a linear acceleration of 1.50 m/s2 for 8.00 s, what is the angular speed of each of the wheels during this time?

A D B VB A large wind turbine (typical of the size and specifications of a turbine that you see in a modern wind farm) has three blades connected to a central hub. The blades are 50 m long and the linear velocity of point B is 65 m/s. (a) What is the linear velocity of point A which is 35 m away from the hub. (b) what is the angular velocity of the turbine. Express your answer in revolutions per minute.

In the figure, a solid 0.1 kg ball rolls smoothly from rest (starting at height H = 6.3 m) until it leaves the horizontal section at the end of the track, at height h = 2.0 m. How far horizontally from point A does the ball hit the floor? Number Units

A ball of radius 0.200 m rolls with a constant linear speed of 3.89 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.10 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? 0 = i

A ceiling fan with 90.0 cm diameter blades is turning at 45.0 rpm. Suppose the fan coasts to a stop 30.0 seconds after being turned off.Assuming the fan is slowing down at a constant rate, what is the angular acceleration (in rad/s/s) of the fan? What is the fan's angular velocity (in rad/s) 15 seconds after being turned off? What is the speed of the tip of the blade (in m/s) 15 seconds after being turned off?  Through how many revolutions does the fan turn while stopping?

A rotating disk is initially spinning at w= 2.7 rev/s, slows down and stops in 19.4 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 0.28 .a O 26.19 .b O 0.14.c O 0.14-.d O

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