Use the values RE = 6370 km = 3960 mi for the radius of the earthAs the smooth bar rotates...

Use the values RE = 6370 km = 3960 mi for the radius of the earth

As the smooth bar rotates in the horizontal plane, the string winds up on the fixed cylinder and draws the 1-kg collar A inward. The bar starts from rest at t = 0 in the position shown and rotates with constant angular acceleration. What is the tension in the string at t = 1 s?