The radius of a car tire is 0.2m. The distance moved by the car if the tire makes 100 rotations is O a. 500 m O b. 62.8 m O . 20 m O d. 125.6 m

A ball is rotating around a string in a clockwise direction. If the angular acceleration is positive, how is the velocity of the ball changing? A. The velocity is decreasing (going slower) B. The velocity is not changing C. The velocity is increasing (going faster) and then decreasing (going slower)

A person sitting on the edge of 6-m-diameter platform moves an arc length of 2 m. Express the angular displacement in degree, radians and revolutions. An electric motor turns at 600 rpm. What is the angular velocity? What is angular displacement after 6 s. 6-m

An ice skater is spinning on the ice with her arms fully extended. When she pulls in her arms, she spins at a faster rate because     a. Her moment of inertia decreases.     b. Her moment of inertia increases.     c. Her moment of inertia stays the same.     d. Her mass stays the same.     e. Her weight stays the same.

A 4m board weighing 60 N extends out over the edge of the table with 40% of the board's length off the table. How far beyond the table can a 20N cat walk before the board begins to tilt Meow, O A. 1.2 m О В. 1.5 m о С. 1.1 m O D. 1.4 m O E. None of the above

A CD rotating at angle initial angle rev / min 40, it took sec 20 to stop, how many turns did it make before it stopped? Choose and solve steps a- 6.67 rev b- 41.8 rev  c- 13.13 rev d- 80 rev

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9. Doja sits on the outer part of a carousel, and Megan sits midway between the center and the rim. The carousel makes one complete revolution every 3 seconds. Megan's tangential velocity is: a. twice of Doja's b. the same as Doja's c. half of Doja's d. four times Doja's

A solid sphere of mass 4.0 kg and radius 0.20 m with a speed of 10 m/s rolls up from the bottomof a ramp inclined 20 ̊. How far approximately the ball will stop on the incline from the bottom?a. 3 m b. 7 m c. 10 m d. 15 m e. 20 m

A wheel is spinning at 430 rev/s. It undergoes an angular acceleration until it reaches an angular velocity of 574 rev/s. While accelerating it completed 2412 revolutions determine how long the wheel was accelerating and its angular acceleration at the time