1. The problem statement, all variables and given/known data A comet is observed in a distance of 100 Earth -radius away from the Earth. It is approaching with a speed of 15000 km/h in a direction only 50 off the line connection the two objects. Earth mass 5.97*1024 kg Earth radius 6.378*106 m Gravity constant 6.6726*10-11 Nm2/kg2 (The geostationary zone is an orbit with radius of 6.62 Earth –radius, and is packed with communication satellites orbiting the Earth.) 2. Relevant equations Will the comet hit the Earth, and if so – when ? Will the comet hit the geostationary zone, and if so – when ? 3. The attempt at a solution Don't know what to do?