1. Consider an airplane that normally has airspeed of 100km/h in a 100km/h crosswind blowing west to east. Compute its ground velocity when its nose is pointed north in the crosswind.
2. A boxer punches a sheet of paper in mid air and brings it from rest up to a speed of 25m/s in 0.05s.
1. What acceleration is imparted to the paper?
2. If the mass of paper is 0.003kg, what force does the boxer exert on it?
3. How much force does the paper exert on the boxer?