a circular disk of radius 100 cm rolls on a smooth horizontal surface with a velocity 36 km/hr how many revolution does it make per second?
Asked by jasleenn.kaur2908
23rd October 2018,
12:11 AM
Answered by Expert
Answer:
For an object rolling without slipping, linear translation velocity v and angular velocity of rotation ω are related as,
v = ω×R, where R is radius of the object.
v = 36 km/hr = 36 × (5/18) = 10 m/s
ω = 10×1 = 10 rad/s
1 revolution = 2π rad /s
hence ω = 10/2π revoltions per second
Answered by Expert
23rd October 2018,
2:05 AM
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