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MasteringPhysics CH 06 HW-Geegle Chreme CH 06 HW Problem 6.14- Enhanced-with Fee

ID: 2304267 • Letter: M

Question

MasteringPhysics CH 06 HW-Geegle Chreme CH 06 HW Problem 6.14- Enhanced-with Feedback What is the horizonial force on the skae? Express your answer to two significant figures and include the appropriane units Constant In short-track speed skating the track has straight sections and semicincles 16 m in dameter. Assume hat a 64 kg skater goes around the tun at a F- 1150 N constant 12 tn/s Figure Correct Here we leam how to apply the concepts of aynamics of unitorm circular mtion to idenilly the force acling on an object Figure 1 of 1 Part What is the rato of this fonce to the skater's weight Express your answer using two significant igures t- ? ??????

Explanation / Answer

According to the given problem,

a) Using the concept of Centripetal force,

F = m*a = 68* v2/r

= 64*122/8 = 1152 N

b) Now for the ration,

r = F/W

= 1152/(64*9.81) = 1.835.

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