Discuss the following:
1. When a high-speed passenger train traveling at 161 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D=676m ahead. The locomotive is moving at 29 km/h. The engineer of the high speed train immediately applies the brakes. For a collision to be just avoided, what must be the deceleration of the passenger train?
2. The muzzle velocity of a long range rifle at A is u=400 m/s. Determine the two angles of elevation which will permit the projectile to hit the mountain target B.
