Posted by cynthia on Wednesday, April 8, 2009 at 6:40pm.
a bicyclist is coasting on level ground at 32.35m/s. The bicyclist coasts up an incline of 20.5m at a 30degree angle. How fast is the bicyclist traveling when he grabs the limb?

physics  drwls, Wednesday, April 8, 2009 at 7:23pm
What "limb" are you talking about?
If he has a frictionless bike, his kinetic energy will be reduced by the work done against gravity.
(M/2) delta (V^2) = 20.5 sin 30 * M g
Delta (V^2) = 41 sin 30 * g

physics  cynthia, Wednesday, April 8, 2009 at 7:28pm
by limb i mean a limb on a tree (srry about that).. and when i set Eg and Ek equal to each other i get 14m/s but the answer is 29m/s

physics  drwls, Wednesday, April 8, 2009 at 7:35pm
41 sin 30*g = 200 m^2/s^2. The original V^2/2 was 1039 m^2/s^2. After coasting uphill, V^2/2 = 1039  200 = 839 m^2/s^2, and so V = 29.0 m/s
Answer This Question
Related Questions
 Physics  A bicyclist is coasting down a road that is sloped downward at an ...
 Physics  A bicyclist coasts without pedaling down an incline that makes an ...
 rates  a bicyclist travels for 2h at an average speed of 12km/h. how far does ...
 Physics  A bicyclist traveling at 7 m/s rides around an unbanked curve. The ...
 Physics  A bicyclist is coasting straight down a hill at a constant speed. The ...
 Physics  A bicyclist is coasting straight down a hill at a constant speed. The ...
 physics  A bicyclist traveling at 8 m/s rides around an unbanked curve. The ...
 college physics  a bicyclist rides off a flat roof at 13.4m/s, the roof is 3.6m...
 physics  A bicyclist accelerates –0.87 m/s2 during a 3.8 s interval. What is ...
 Physics  What would the equation be for this problem: A bicyclist accelerates ...
More Related Questions