Question

The black mamba is one of the world’s most poisonous snakes, and with a maximum speed of 18 km/h, it is also the fastest. Suppose a mamba waiting in its hideout sees prey and begins slithering toward it at maximum speed. After 2.50 seconds, the mamba realizes that its prey can move faster than it can, so it turns around and slowly returns to its hideout in 12.0 seconds. Calculate the mambas average speed and the mambas average velocity