An eastbound car travels a displacement of 80.0 Km in 45 minutes. What is the velocity of this car in both Km/h and m/s?

An observer that stands still as the electron moves by him, will observe

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied