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YouTube x S SunGard Higher Educat x y Hwas Netflix C. www.webassign.net/web/Student/Assignment. Responses/last?dep 15688534 -2 points SerCP115 PO A 0.220-kg block along a horizontal track has a speed of 1.30 m/s immediately before colliding with a light spring of force constant 5.15 N/m located at the end of the track. (a) What is the spring's maximum compression if the track is frictionless? (b) If the track is not frictionless, would the spring's maximum compression be greater than, less than, or equal to the value obtained in part (a)? greater less O equal Need Help? LRead 1. O-2 points SercP11 5.P050 A skier of mass 73 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him s5 m up a 30% slope (assumed frictionless) at a constant speed of 1.7 mvs? (b) What power (expressed in hp) must a motor have to perform this task? Need Help? Reed

Explanation / Answer

a)

By Conservation of energy

(1/2)mV2=(1/2)Kx2

0.22*1.32=5.15*x2

x=0.2687 m

b)

equal

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