My friend gave me this interesting puzzle. Can u pl solve this. i really need the answer for these. surely someone will know the answer.
(i) A cow ploughs the land for 100m in 10minutes. What is the Acceleration?
(ii) How many times the hour hand and minute hand meet in 24 hours?
2007-11-02 04:03:04 · 9 answers · asked by prasanthraj89 2 in Education & Reference ➔ Trivia
1. speed is 10m per minute. acceleration is good question. how long does it take the cow to reach top speed? 0-10 m per minute in 10 seconds? 5 seconds? did you goose the cow? or whip it? use an electric cattle prod? depends on cow I think.
2. the minute hand and the hour hand will meet 24 times in 24 hours.... once each hour.
2007-11-02 04:12:43 · answer #1 · answered by Schtupa 4 · 0⤊ 0⤋
The fact that the cow is ploughing is irrelevant. The distance travelled is 100 metres in ten minutes so the speed is 600 metres per hour. Acceleration is, of course, the 'increase' in speed so the cow would, presumably, star at 0 metres per hour until it reached 600 metres per hour. That's an average acceleration of 300 metres per hour.
The second question depends on whether the hands are together both at the start and finish of the 24 hours, in which case it will be 25 times, one each hour plus the 0.00 time
2007-11-02 04:59:03 · answer #2 · answered by quatt47 7 · 0⤊ 0⤋
2:24
2007-11-02 07:59:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
the first one who answered is right.
although:
1. in acceleration, it depends. How fast the cow is going in 10 minutes until he reaches the 100m mark. it may either be constant (10m/min) or inconsistent (any rate as long as it fits the requirement)
2007-11-02 04:22:08 · answer #4 · answered by lifeless_abyss_netherworld 2 · 0⤊ 0⤋
(i) using s=1/2at^2 the answer is 5.56x10^(-4) m/s/s or
2m per minute per minute. Assuming the cow starts from rest
(ii) 24
2007-11-02 04:25:23 · answer #5 · answered by Mark 2 · 0⤊ 0⤋
warp 6. 24 times unless the batteries fail
2007-11-02 10:24:07 · answer #6 · answered by boris the spider 5 · 0⤊ 0⤋
Cows don't plow - oxen do. (That may be the catch)
Is the 100 metres in one direction, or, for example 50 metres on each side of a reversal of direction. Too many unknowns for me.
2007-11-02 04:50:47 · answer #7 · answered by picador 7 · 0⤊ 0⤋
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2016-11-10 01:23:36 · answer #8 · answered by lizarraga 4 · 0⤊ 0⤋
Wow... either this is a joke question, or this is grade 5 homework.
2007-11-04 01:18:37 · answer #9 · answered by CubeScience 3 · 0⤊ 0⤋