Posted by Sasha on Thursday, November 19, 2009 at 9:38pm.
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 800 N and the angle between the two ropes is 20°. How hard must each player pull to drag the coach at a steady 2.0 m/s?

Physics  bandit, Thursday, November 19, 2009 at 10:08pm
does it tell u how much coach weighs

Physics  MathMate, Thursday, November 19, 2009 at 10:54pm
The net total force on the sled through the ropes is
F=2T cos(10°), where T is the tension on each rope.
Let m be the mass of the coach + the sled.
Then F800=ma
where 800 = frictional force
m=total mass of coach and sled
a=acceleration = 2 m/s.
Solve for T.
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