The producer of the last film you worked on was so impressed with the way you ha

Question

The producer of the last film you worked on was so impressed with the way you handled a helicopter scene that she hired you again as technical advisor for a new "James Bond" film. The scene calls for 007 to chase a villain onto a merry-go-round. An accomplice starts the merry-go-round rotating in an effort to toss 007 off into an adjacent pool filled with hungry sharks. You must determine a safe rate of rotation such that the stunt man will not fly off the merry-go-round and into the shark-infested pool. (Actually they are mechanical sharks, but the audience doesn't know that.) You measure the diameter of the merry-go-round as 50 meters. You determine that the coefficient of static friction between 007's shoes and the merry-go-round surface is 0.7 and the coefficient of kinetic friction is 0.5.

Explanation / Answer

for safe purpose friction force will provide the centripital force

Fc=Ff

m*v^2/r=0.5*m*g

v=11.07 m/s the static friction says that how much force is to be required to initiate the motion

F=0.7*9.81*m

=6.867m N ans

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