00 102 - kg crate is being pushed across a horizontal floor by a force that makes an angle of 30.0 below the horizontal. The coefficient of kinetic...

A 1.00 × 102 - kg crate is being pushed across a horizontal floor by a force that makes an angle of 30.0°

below the horizontal. The coefficient of kinetic friction is 0.200. What should be the magnitude of , so

that the net work done by it and the kinetic frictional force is zero?