Math, asked by khusi5437, 1 year ago

the diameter of we'll pass is 90 centimetre which make 3 315 relovation 1 minute determine its speed is in kilometre per hour ​

Answers

Answered by malika83
1

Diameter = 90 cm ⟹ r = 45 cm

circumference = 2×227×45 = 282.85

Distance covered in one revolution = 282.85 cm

∴Distance covered in 315 revolution=282.85×315=89097.75cm=89097.75100000=0.89097km

distance in 1 minute = 0.89097 km

distance in 60 minutes pr 1 hr

= 0.89097 * 60

= 53.4Km/hr

Similar questions