Calculate the speed of the tip of the minute hand with length of 7cm
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Answered by
3
Speed = distance / time
Radius(r) = 7cm = 7/100 m
Distance (d ) =2r = 2 x22/7 x 7/100 = 0.44 m
Time = 60 sec
Speed = 0.44/60 = 0.007 m/s
Radius(r) = 7cm = 7/100 m
Distance (d ) =2r = 2 x22/7 x 7/100 = 0.44 m
Time = 60 sec
Speed = 0.44/60 = 0.007 m/s
NavaneethKM:
sorry 2 pie r is it
I think your answer is wrong. I mean the method is wrong.
You should take the time as 60 minute.
The answer is right.Time is to be taken as 60 sec
Answered by
1
Speed = Angular Speed * Distance.
Angular Speed = Total angle covered in one rotation/ Time taken
= 2
/60 = 0.105 rad/min
Speed = 0.105 * 7 = 0.73 cm/min
Angular Speed = Total angle covered in one rotation/ Time taken
= 2
Speed = 0.105 * 7 = 0.73 cm/min
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