Tuesday
September 16, 2014

Homework Help: Physics

Posted by Bonny on Tuesday, February 26, 2013 at 4:46pm.

In the sport of skeleton a participant jumps onto a sled (known as
a skeleton) and proceeds to slide
down an icy track, belly down and
head first. In the 2010 Winter
Olympics, the track had sixteen turns
and dropped 126 m in elevation from
top to bottom. (a) In the absence of
nonconservative forces, such as friction and air resistance, what would be
the speed of a rider at the bottom
of the track? Assume that the speed at
the beginning of the run is relatively
small and can be ignored. (b) In reality, the gold-medal winner (Canadian
Jon Montgomery) reached the bottom
in one heat with a speed of 40.5 m/s
(about 91 mi/h). How much work was
done on him and his sled (assuming a
total mass of 118 kg) by nonconservative forces during this heat?
I successfully finished part a.) and came up with Vf=49.7m/s. Part b.)is where I need help.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - In the sport of skeleton a participant jumps onto a sled (known as a ...
physics - In the sport of skeleton a participant jumps onto a sled (known as a ...
physics - One of the new events in the 2002 Winter Olympics was the sport of ...
Physics - In the sport of skeleton a participant jumps onto a sled (known as a ...
Physics! - One of the new events in the 2002 Winter Olympics was the sport of ...
physics - Starting at the top of a steep, icy track, a rider jumps onto a sled...
Science - Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35...
Science - Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35...
Zoology - Compare the dermatocranium,splanchnocranium,chondocranium,appendicular...
Comparative Vertebrate Anatomy - Compare the dermatocranium,splanchnocranium,...

Search
Members