 Quote by alexhavak
i have a problem that states. a record has an angular speed of 34.6 rev/min. Find its Angular speed in rad/s.
-so the answer is 3.623.
The second part of the problem asks what angle, in radians, does it rotate in .717s. answers in rad.
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What do you think the answer should be? If the angular speed is 3.623 radians/second, and the time is given as 0.717 seconds, how do you think you would get the angle in radians? (Hint: Angle is similar to distance, which equals rate X time.)
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Also, i have some problems dealing with a ball at the end of the string with length 1.8m. It is in horizontal circle at constant speed. IT makes 3.4 rev/s. I need to find the period of the ball's motion, the frequency, and its angular velocity...but everything i have tryed has failed.
I tryed 1.848 and .18726 for the period but was wrong. i tryed 5.34 and .5411 for the frequency but was wrong and the velocity i also got wrong.
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Don't just give your answers, show how you got those answers. (Then we can see where you made a mistake.) Here's a hint: I assume you know that period means the time for one revolution. If you know that 3.4 revolutions takes 1 second, how long will 1 revolution take?