An old lady goes for a walk daily morning from 6 am in a circular park. if the radius of park is 14m and her speed is 7 km/h then how long will the old lady take to complete one round
Answers
Answered by
4
radius = 14 m
circumference of park= 2πr= 2x(22/7)x 14= 88m
speed = 7 km/hr = 7x1000/60x60= 1.94m/sec
time= distance/speed
= 88/1.94
=45.36 sec. Ans
circumference of park= 2πr= 2x(22/7)x 14= 88m
speed = 7 km/hr = 7x1000/60x60= 1.94m/sec
time= distance/speed
= 88/1.94
=45.36 sec. Ans
Answered by
3
Answer
-> 14 m is the given radius.
-> 2πr = 2x ( 22/7 ) x 14 = 88m
-> 7km = 7x*1000*60 × 60
= 1.94 m/s
[ Time = Distance / Speed ]
= 88 / 1.94
= 45.36
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