A car drives through an angle of 43 deg on a 180 m radius traffic circle. Throug

Question

A car drives through an angle of 43 deg on a 180 m radius traffic circle. Through what distance did the car drive 20. 138.0 m 135.1m 148.9 m 157.0 m 160.9 m 120.6 m An object at the end of a 1.9 m string swings around in a circle. If the object's centripetal acceleration is 1.8 m/s^2, then what is its linear speed 1.579 m/s 2.068 m/s 1.905 m/s 1.849 m/s 1.901 m/s 1.529 m/s A 1.3 m long rod has mass 6.8 kg. If the rotation axis is located at one end of the rod, then find its moment of inertia. 3.678 kg m^2 4.714 kgm^2 3.717 kg m^2 3.830 kg m^2 3.831 kg m^2 4.066 kg m^2 A 375-kg disk (with uniform density) is shown below. Its rotation axis is through its center. If the disk is initially at rest, how long does it take to reach an angular velocity of 30 rad/s 181.5 s 182.2 s 215.5 s 144.1s 180.2 s 144.5 s Suppose the angle of rotation theta is given by theta(t) = 1.8t^3 - 3.4t^2 + 8t + 9.5 . Find the following quantities. Assume SI units are being used throughout. 24. theta (6.3_s) 517.6_rad 329.4_ rad 591.3_rad

Explanation / Answer

20. d

21. e

24. b

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