Problem 3 Chapter 6: A block with mass m;= 0.5-kg is released from rest on a frictionless track at a distance hi 2.5 m above the top of a table. It then collides elastically with an object having mass m; = 1.0 kg that is initially at rest on the table, as shown in the figure. The table is h; = 2.00 m high. a) How far away from the bottom of the table do the objects land? Hints: determine the velocities just after the collision, how high does object 1 travel back up the track. b) Suppose the collision is inelastic. Where does the combined object land? hy

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.