Q1. A major-league pitcher can throw a baseball in excess of 41.3 m/s. If a ball is thrown horizontally at this speed, how much would it drop by the time it reaches a catcher who is 17.5 m away from the point of release?
Q2. The lander is 8.2 meters above the surface and has the downward speed of 0.89 m/s while the engine is cut off. What is the speed of the lander just before it touches the surface?
Q3. Assume an automobile has 3700 J of kinetic energy. When it moves at twice the speed, what would be its kinetic energy? What's its kinetic energy at three times the speed?