Asked by lissa
A rope goes over a circular pulley with a radius of 6.3 cm. If the pulley makes four revolutions without the rope slipping, what length of rope passes over the pulley?
how can i find distance if the only variable given is radius and revolutions?
how can i find distance if the only variable given is radius and revolutions?
Answers
Answered by
MathMate
Arc length = radius * angle (in radians)
In this case, arc length equals length of rope, so
L = r*θ = 6.3*4(2π)
Can you take it from here?
In this case, arc length equals length of rope, so
L = r*θ = 6.3*4(2π)
Can you take it from here?
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