A new event, shown inFigure P I0.68, has beenproposed for the WinterOlympics. An athlete

Chapter 10, Problem 68

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A new event, shown inFigure P I0.68, has beenproposed for the WinterOlympics. An athlete willsprint I 00 m, sta1ting from rest,then leap onto a 20 kg bobsled.The person and bobsled will then slide down a 50-m-longice-{;overed ramp, sloped at 20, and into a spring with a carefullycalibrated spring constant of2000 N/m. The athlete who compressesthe spring the farthest wins the gold medal. Lisa, whose mass is40 kg, has been training for this event. She can reach a maximumspeed of 12 mis in the I 00 m dash.a. How far will Li sa compress the spring?b. The Olympic committee has very exact specifications aboutthe shape and angle of the ramp. ls this necessary? lf thecommittee asks your opinion, what factors about the rampwi ll you tell them are important?

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