Q1. A 12 g bullet travelling 218 m/s penetrates a 2.00 kg block of wood and emerges going 163 m/s. If the block is stationary on the frictionless surface when hit, how fast does it move after the bullet emerges?
Q2. A truck travels beneath an airplane that is moving 180 km/h at the angle of 25? to the ground.
How fast must the truck travel to stay beneath airplane?
Q3. The pilot of an aircraft wishes to fly due west in a 33.10 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190 km/h what must its speed relative to the ground be?