Homework Help: physic

Posted by Drake on Tuesday, January 11, 2011 at 5:55pm.

A bobsled slides down an ice track starting
(at zero initial speed) from the top of a(n)
146 m high hill.
The acceleration of gravity is 9.8 m/s2 .
Neglect friction and air resistance and de-
termine the bobsled’s speed at the bottom of
the hill.
Answer in units of m/s.

physic - bobpursley, Tuesday, January 11, 2011 at 5:59pm
The change in Kinetic Energy has to be equal to the change in Potentialenergy.

1/2 mv^2=mg*146

v^2=2g(146)

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