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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