Sources of errors in young mudulus experiment​

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

What occurs during a combustion reaction