Question

An 90 kg skier starts from rest at the top of a ski run. She quickly finds herself going fast down the icy (essentially frictionless) hill. At the base of the hill she is unable to stop. She skis across an icy deck, through the open doors of the ski lodge; across the concrete floor of the rental shop before coming to rest against the back wall of the shop. The height of the hill is 150m, the deck and lodge are on level ground at the base of the hill, and the coefficient of kinetic friction between rental skis and concrete is 0.65. If she experiences an impulse of 4000Ns, what was the distance that she traveled along the concrete? O 76 m 10 m O 110 m O 43 m O none of these

Answer 1

# migh= {njiva 9.8 x 150 x 2 = V V = 54.2217 mis in momentina Impulse=1 Change 4000 go ( 54.2-Vp) Vf gox 54.2217 -7000 a 9,777 mis. go

Inhu Mongs S 95.596 0.65X 9.8x S 2 7.5m. distance- traveled Ang None of a sone
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