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Category > Physics Posted 08 Jul 2017 My Price 4.00

ski race

In a downhill ski race, surprisingly, little advantage is gained by getting a running start. (This is because the initial kinetic energy is
small compared with the gain in gravitational potential energy even on small hills.) To demonstrate this, find the final speed in m/s
and the time taken in seconds for a skier who skies 62.0 m along a 28° slope neglecting friction for the following two cases. (Enter
the final speeds to at least one decimal place.) (a) starting from rest final speed time taken (b) starting with an initial speed of 3.30 m/s final speed time taken (c) Does the answer surprise you? Discuss why it is still advantageous to get a running start in very competitive events. m/s 5 m/s 5

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SuperTutor
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Status NEW Posted 08 Jul 2017 02:07 AM My Price 4.00

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