Well, honey, let me break it down for you. The second hand on a watch completes a full rotation of 360 degrees in 60 seconds. So in 15 seconds, it covers a quarter of that distance, which is 90 degrees. Math doesn't lie, darling.
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The second hand of a watch completes a full rotation every 60 seconds, which is equivalent to 360 degrees. Therefore, in 15 seconds, the second hand would have traveled 1/4th of the way around the watch face. This means it would have covered 90 degrees in 15 seconds.
90 degrees. (360 degrees in a clockface, takes 60 seconds to cover all of them. So the second hand covers 6 degrees per second (360 divided by 60). Now multiply 6 degrees per second by 15 seconds - i.e 6 x 15 = 90
Because it ticks off the seconds. The first hand ticks off the hours, and the minute hand ticks off the minutes.
Because it counts seconds.
one second
Angular motion.
300