How long will a man take to make a round of a circular field of radius 21 m, cycling at the speed of 8km/h?
Answer with explanation
Answers
Answered by
7
Step-by-step explanation:
How long will a man take to make a round of a circular field of radius 21 m, cycling at the speed of 8km/h?
Attachments:
Answered by
2
Step-by-step explanation:
r = 21 m
circumference = 2πr
= 132 m
speed = 8 km/h
= 8×5/18 m/s
= 20/9 m/s
time taken = 132 × 9/20
= 59.4 s
pls mark me brainliest
Similar questions