(Solved) Clock Trig Question

marinejas

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3 years ago

1. I have another clock question, I already had sketched everything but wasn't sure on how to exactly solve it because it is a little difference. This time the hour hand is pointing directly at the 9 and the minute pointing at the 12. Then the tip of the second hand is directly above the hour hand. The hour hand has a length of 6cm, what would be the exact length of the second hand? and what distance does the second hand travel in 1 min?

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bio_man

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3 years ago Edited: 3 years ago, bio_man

Are the parameters the same as they were in the previous question?

For example, in the other question, you were given the length of the seconds hand to be 12 cm. Does that apply here?

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marinejas Author

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3 years ago

No, just the hour hand, which has a length of 6cm

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bio_man

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3 years ago Edited: 3 years ago, bio_man

If the parameters are different, then there's definitely missing information. In the other question, they told us the seconds (25 seconds if I recall). In this question, they've only told us the length of the hour hand. Something's missing, marinejas

The only way we can do this is if this calculation is being done on the same clock, but that's not stipulated here.

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marinejas Author

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3 years ago

Let me write down the full question,
A clock is showing the time as exactly 9:00 pm and 50 seconds. The hour hand is pointing
directly at the 9 and the minute hand is pointing directly at the 12. The tip of the second hand
is directly above the hour hand. The hour hand has a length of 6 cm. What is the exact length
of the second hand?
What distance does the second hand travel in 1 minute?

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bio_man

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Clock Trig Question

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