Asked by Xavier Hernandez
A yo-yo has a rotational inertia of 760 g·cm2 and a mass of 200 g. Its axle radius is 4.0 mm, and its string is 100 cm long. The yo-yo rolls from rest down to the end of the string.
(a) What is the magnitude of its linear acceleration?
cm/s2
(b) How long does it take to reach the end of the string?
s
(c) As it reaches the end of the string, what is its linear speed?
cm/s
(d) As it reaches the end of the string, what is its translational kinetic energy?
J
(e) As it reaches the end of the string, what is its rotational kinetic energy?
J
(f) As it reaches the end of the string, what is its angular speed?
rad/s
(a) What is the magnitude of its linear acceleration?
cm/s2
(b) How long does it take to reach the end of the string?
s
(c) As it reaches the end of the string, what is its linear speed?
cm/s
(d) As it reaches the end of the string, what is its translational kinetic energy?
J
(e) As it reaches the end of the string, what is its rotational kinetic energy?
J
(f) As it reaches the end of the string, what is its angular speed?
rad/s
Answers
Answered by
Xavier Hernandez
just part a...does anyone know how to do it?
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