2) A snake is slithering toward you at 1.5 m/s. If you start walking when it is 5m away, how fast must you go in order that the snake not overtakes you when you had gone 40 m?

3) A hare and a tortoise compete in a race over a course 1.0 km long. The tortoise crawls straight and steadily at its maximum speed of 0.2 m/s toward the finish line. The hare runs at its maximum speed of 8.0 m/s toward the goal for 0.8 km and then stops to tease the tortoise. How close to the goal can the hare let the tortoise approach before resuming the race, which the tortoise wins in a photo finish? Assume that, when moving, both animals move steadily at their respective maximum speeds.

Thanks to those who’ll be helping me.. I really don’t know how to solve these physics problems..