Question1 of 20 > ! 5 E View Policies Current Attempt in Progress A car is moving along a horizontal road at a constant velocity that is directed 45" south of east. What is the direction of the angular velocity of the wheels of the car? O 45" south of east 0 45" south of west O 45" north of west O due east 0 45" north of east Question 2 of 20 f 5 E View Policies Current Attempt in Progress A motorcycle, which has an initial linear speed of 5.3 mls, decelerates to a speed of 2.1 mfs in 7.0 5. Each wheel has a radius of 0.68 m and is rotating in a counterclockwise (positive) directions. What is {a} the constant angular acceleration {in rad/52] and [In] the angular displacement {in rad]I of each wheel? {a} Number Units V lb] Number n Units V Question 3 of 20 - f 5 E View Policies Current Attempt in Progress Two motorcycles are riding around a circular track at the same angular velocity. One motorcycle is at a radius of 15 m; and the second is at a radius of 18 m. What is the ratio of their linear speeds, win? 0 1.2 CI 0.71 O 1.0 O 0.83 O 1.4 Question 4 of 20 - 15 WH - View Policies Current Attempt in Progress The front and rear sprockets on a bicycle have radii of 11.1 and 4.85 cm, respectively. The angular speed of the front sprocket is 9.55 rad/s. Determine (a) the linear speed (in cm/s) of the chain as it moves between the sprockets and (b) the centripetal acceleration (in cm/s2) of the chain as it passes around the rear sprocket. (a) Number i Units (b) Number i UnitsQuestion 5 of 20 f 5 E Nan-d: question View Policies Current Attempt in Progress MultipleConcept Example 7 explores the approach taken in problems such as this one. The blades of a ceiling fan have a radius of 0.338 m and are rotating about a xed axis with an angular velocity of +1.71 rad/s. When the switch on the fan is turned to a higher speed, the blades acquire an angular acceleration of +2.84 radfs2. After 0.377 s have elapsed since the switch was reset, what is [a] the total acceleration (in W52] of a point on the tip of a blade and {b} the angle (,5 between the total acceleration E and the centripetal acceleration 5.; {See Figure b}? l til 4" 3T 8.: \\J {hi [3] Number n Units V (ID) Number l Units V Question 6 of 20 f 5 E View Policies \"m \""35\"\" Current Attempt in Progress A baseball pitcher throws a baseball horizontally at a linear speed of 50.7 m/s. Before being caught, the baseball travels a horizontal distance of15.o m and rotates through an angle of 50.2 rad. The baseball has a radius of 3.30 cm and is rotating about an axis as it travelsr much like the earth does. What is the tangential speed ofa point on the "equator" of the baseball? Number I Units V Question 7 of 20 - 15 ".. WH - View Policies Current Attempt in Progress A wheel, originally rotating at 126 rad/s undergoes a constant angular deceleration of 5.00 rad/s2. What is its angular speed after it has turned through an angle of 628 radians? O 98 rad/s O 121 rad/s O 150 rad/s O 15 rad/s O 19 rad/sQuestion 8 of 20 f 5 E View Policies Current Attempt in Progress A 1.0m roulette wheel reaches a maximum angular speed of 18 rad/s before it begins decelerating. After reaching this maximum angular speed, it turns through 35 revolutions {220 rad} before it stops. How long did it take the wheel to stop after reaching its maximum angular speed? l@125 03.?5 08185 0485 0245 Question 9 of 20 > - 15 View Policies Current Attempt in Progress A bicycle travels 141 m along a circular track of radius 30 m. What is the angular displacement in radians of the bicycle from its starting position? O 3.0 rad O 1.0 rad O 1.5 rad O 4.7 rad O 9.4 radQuestion 10 of 20 f 5 E Nan-d: question View Policies Current Attempt in Progress A meter stick is rotated about the end labeled 0.00 cm, so that the other end of the stick moves through an arc length of 8.29 cm. Through what arc length 5 does the 25.0cm mark on the stick move? 5 = Number a Units v Question 11 of 20 - 15 ... View Policies Current Attempt in Progress An automatic dryer spins wet clothes at an angular speed of 4.6 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 3.5 rad/s2. How long does it take the dryer to come up to speed? iQuestion 12 of 20 - 15 View Policies Current Attempt in Progress A long thin rod of length 2L rotates with a constant angular acceleration of 8.0 rad/s about an axis that is perpendicular to the rod and passes through its center. What is the ratio of the angular speed (at any instant) of a point on the end of the rod to that of a point a distance L/2 from the end of the rod? O 4:1 O 1:1 O 1:4 O 2:1 O 1:2Question 13 of 20 - 15 IE ... Next question View Policies Current Attempt in Progress A flywheel has a constant angular deceleration of -3.00 rad/s2. (a) Find the angle through which the flywheel turns as it comes to rest from an angular speed of 238 rad/s. (b) Find the time required for the flywheel to come to rest. (a) Number i Units (b) Number i UnitsQuestion 14 of 20 ! 5 E View Policies Current Attempt in Progress A gymnast is performing a oor routine. In a tumbling run she spins through the air, increasing her angular velocity from 2.30 to 4.60 rev/s while rotating through one half ofa revolution. How much time does this maneuver take? Number l Units V Question 15 of 20 > - 15 . .. View Policies Current Attempt in Progress A person lowers a bucket into a well by turning the hand crank, as the drawing illustrates. The crank handle moves with a constant tangential speed of 1.72 m/s on its circular path. The rope holding the bucket unwinds without slipping on the barrel of the crank. Find the linear speed with which the bucket moves down the well. 0.100 m diameter 0.400 m diameter V1=Question 16 of 20 > - 15 IE View Policies Current Attempt in Progress An auto race takes place on a circular track. A car completes one lap in a time of 19.3 s, with an average tangential speed of 38.6 m/s. Find (a) the average angular speed and (b) the radius of the track. (a) Number i Units (b) Number i UnitsQuestion 17 of 20 - 15 ... View Policies Current Attempt in Progress A race car travels with a constant tangential speed of 78.6 m/s around a circular track of radius 606 m. Find the magnitude of the total acceleration. VT Number UnitsQuestion 18 of 20