A globe (a hollow sphere) is initially at rest. It is pushed along the tangent at its equator for 1.2 seconds and as a result it rotates at a rate of 2.4 rotations every second. The axis of rotation is perfectly vertical and frictionless. The globe has a mass of 3.1 kg and a radius of 0.3 m. What is the magnitude of the force in Newtons that acted on the globe? (Answer should be: 7.79)