1) A plane flying horizontally at 55.0 m/s drops an aid package to a village below. The pilot wants to drop the package a distance of 125 m horizontally before the village. How high off the ground must the plane fly to get the package to the village directly?
2) A cannonball is shot out of a cannon with a horizontal velocity component of 40 m/s [right] and a vertical velocity component of 20 m/s [up]. If the cannon is sitting at the top of a 100 m high cliff, how far horizontally will the cannonball travel?
3) A ball is thrown at an angle of 53o above the horizontal at an unknown velocity. We do know that the ball has an initial horizontal velocity of 82 m/s, and that the ball returns to the ground. How far did the ball go horizontally?