The car travels from b to c in 2.5 hours what is the average velocity of the car during that part of the trip

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

What are two different ways you could find the value of a? explain these methods.