Looking down from a stationary tree branch, a merrygoround spins in a counterclockwise direction with an angular velocity of 1 radian per second. a squirrel of mass 0.2 kg sis on the outer rim of the merrygoround, at a radius of 2.0 meters.
a) What is the magnitude and direction of the vector omega?
b) What is the magnitude and direction of the Coriolis pseudoforce as felt by the squirrel? (equation: 2m(omega x v_r))
c)What is the magnitude and direction of the centrifugal pseudoforce as felt by the squirrel? (equation: m(omegax(omegaxr_r))
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1 Answer

(a) omega = 1 rad/s, direction = upward
(b) There is no Coriolis force so long as the squirrel is not trying to march inward or outward.
(c) F = (0.2 kg)(1 s^(1))^2 (2.0 m) = 0.4 N