Calculate the speed of minute hand of length 7cm
Answers
Answered by
0
WE KNOW THAT,
SPEED=DISTANCE/TIME
HERE,
DISTANCE=2πr=43.96 CM=0.00044 KM
TIME=60 SEC=1 MIN=1/60 HRS
SPEED=43.96/1/60=0.00044×60=0.0264 KM/HR
=0.00733 M/S
SPEED=DISTANCE/TIME
HERE,
DISTANCE=2πr=43.96 CM=0.00044 KM
TIME=60 SEC=1 MIN=1/60 HRS
SPEED=43.96/1/60=0.00044×60=0.0264 KM/HR
=0.00733 M/S
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Answered by
1
circumference of clock=2*pi*r
r=7cm
circumference=2*22/7*7=44cm
speed=distance/ time
time=60sec
distance=44cm
then, speed=44/60
=0.73cm per sec
r=7cm
circumference=2*22/7*7=44cm
speed=distance/ time
time=60sec
distance=44cm
then, speed=44/60
=0.73cm per sec
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