A solid cylinder rolls down an incline at 41° from rest. (a) What is its acceleration (in m/s²)? (Enter the magnitude.) 6.4 x m/s² (b) How far (in m) does it go in 2.5 s? m Explain how these results would differ if the solid cylinder were replaced with a marble.
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- A computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2 until it reaches its final angular speed of 7,200 rmp (revolutions per minute). How many revolutions has the disk made 10.0 s after it starts up? Do not enter units. Don't forget to convert rad/s to rev/s. A sketch of angular velocity versus time will help you solve this problem. Treat rev/s just as you would m/s.A 3.0 kg solid cylindrical wheel has a radius of 54 cm. Two forces are applied to it as shown in thefigure. F, = 10 N and is applied at the edge. F2 = 25 N and is applied halfway between the axeland the edge. What is the magnitude of the angular acceleration of the wheel?A rotating wheel requires 9.00 s to rotate 28.0 revolutions. Its angular velocity at the end of the 9.00-s interval is 99.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel? rad/s2 Need Help? Master It Read It
- After fixing a flat tire on a bicycle you give the wheel a spin in the counterclockwise direction. (a) If its initial angular velocity was +6.58 rad/s and it rotated an angular displacement of +13.6 revolutions before coming to rest, what was its angular acceleration? (Assume it is constant.) rad/s? (b) How long did the wheel rotate? SA rotating wheel requires 8.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 8.00-s interval is 97.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel? 5.67 This is the angular acceleration to start from rest and to rotate the given number of revolutions in the given time. The wheel will not have the required final angular velocity in this case. rad/s Need Help? Read It Master It O Show My Work (Optional)An electrical motor spins at 2850 rpm. The armature radius is 2.68. What is the angular velocity in radian/seconds? B) Through what angle does the motor turn in 0.25 s?
- A tire placed on a balancing machine in a service station starts from rest and turns through 4.97 revolutions in 1.27s before reaching its final angular speed. a) Calculate its angular acceleration. b) What is the angular speed of the tire after 1.27s?The wheels of a sport car go from rest to 3000 rpm in 3 second. Its angular acceleration a is rad/s?. Type your answer.page A person 1.56 m tall swings their leg from the hip at 1.51 radians/s. Calculate the linear tangential velocity (v) at their knee to 2 decimal places. Answer. re to search 561 R T 6 B N U 8 O Pa Next page d Construction on A20...
- A wheel, initially rotating at 15.4 rad/s, undergoes an angular acceleration of 5.5 rad/s^2. What is the angular velocity when the wheel has turned through an angle of 69.0 rad? Give your answer in rad/s.A cylinder 37.0 cm in diameter is at rest initially. It is then given an angular acceleration of 0.068 rad/s^2. Find the angular velocity at 5.26 s. Give your answer in rad.A crankshaft rotating at 10.2 rad/s undergoes an angular acceleration of 2.2 rad/s^2. What is the angular velocity of the shaft after 11.0 s? Give your answer in rad/s.