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What is the angular speed of the second hand?
6 degrees/second
How do you convert radians per second to meters per minute?
First you must know the radius of whatever is moving in a circle. The relationship is: linear speed (meters/second) = angular speed (radians/second) x radius. The result, as hinted in the units, will be in meters/second. Converting that to meters/minute is easy; you just multiply by 60.
If I traveled 60 meters in 1 minute what is my average speed per second?
1 metre per second
What is the speed of a sweep-second if the length is 2 cm and the hand is at 6'o clock mark?
It doesn't matter where it is on the clock. If the clock is working properly, the speed of the hand is constant.The hand's angular speed is 360 degrees per minute = 6 degrees per second.For the linear speed, the tip of the second-hand revolves in a circle whose circumference is(2 pi) times (length of the hand) = 4 pi centimeters.It revolves once per minute. So the speed of the tip is (4 pi) cm/minute, or (240 pi) cm/hour.In numbers, the speed at the tip is:12.6 cm/minute2.09 mm/sec7.54 meters/hour0.000469 mile/hour593.7 feet/day12.593 furlongs/fortnight.Notice that this is the speed at the second-hand's tip. Other points on it travel slower.The closer the point is to the center, the slower its speed is. At the center, it spins, butthe linear speed is zero.
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 48 RPM revolutions per minute if the wheel's diameter is 42 cm?
Two formulas are commonly used for centripetal acceleration: 1) a = v2/r (v = speed, r = radius) 2) a = omega2 x r (omega = angular speed, r = radius) Formula 2 seems simpler to use in this case. Note that the angular speed must be in radians/second, so you must first convert rpm to radians per secnd.
