Skaters please just talk with me for a little please

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

In a system, when potential energy decreases, then entropy also decreases. true false

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.