plzzz answer question very fast
Attachments:
Answers
Answered by
1
Time of one revolution = 40 min
total time = 130 min
so total revolution = 130/40 = 4.25
now, distance = circumference×total revolution
=2π×7 ×4.25 =187 m
displacement is the shortest distance between initial and final position.
So by Pythagoras theorem,
displacement =√[(7)²+(7)²] = 7√2 m ≈ 9.898 m
total time = 130 min
so total revolution = 130/40 = 4.25
now, distance = circumference×total revolution
=2π×7 ×4.25 =187 m
displacement is the shortest distance between initial and final position.
So by Pythagoras theorem,
displacement =√[(7)²+(7)²] = 7√2 m ≈ 9.898 m
Similar questions