Tom and Jerry both push on the 3.10m -diameter merry-go-round shown in the figure. \ a)...
Tom and Jerry both push on the 3.10m -diameter merry-go-round shown in the figure.
\
a) If Tom pushes with a force of 39.8N and Jerry pushes with a force of 36.0N , what is the net torque on the merry-go-round?
b) What is the net torque if Jerry reverses the direction that he pushes by 180? without changing the magnitude of his force?
Homework Answers
a) (Tsin60 - Jsin80)*1.55m = 1.5271 clockwise
b) (Tsin60 + Jsin80)*1.55m = 108.377 anti- clockwise
Net torque=[T sin(60) - Jcos(10)]*r
T= 1.526 Nm
(into the plane) (ans)
b)in this case
net torque=[T sin(60) + Jcos(10)]*r =107.303 Nm (out of plane) (ans)
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