posted by Sasha on .
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?
does it tell u how much coach weighs
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.
where 800 = frictional force
m=total mass of coach and sled
a=acceleration = 2 m/s.
Solve for T.