The linear momentum of runner in a 100m dash is 750kg m\s. if the runner speed is 10m/s what is his mass

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

If a simple machine reduces the strength of a force, what must be increased?