1.

at the centre is 30°A wheel rotates making 20 revolutions per second. If the radius of thewheel is 35 cm, what linear distance does a point of its rim transverse inthree minutes?

Answer»

3600 revolution in 3 minutes

No: of revolution in 3 min=20*60*3=3600Linear distance covered during 1 revolution=2π*35=220 cmTherefore linear distance covered in 3600 revolution=220*3600=792000cm=7.92km



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