If you throw an apple towards the sky why its going up in spite of gravitational pull? . Hint : (Answer the question based on the concept of net force?)

Please help you guys..!
and if u can please give an explanation as well!

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.

In an experiment, how can i change human errors? be specific.

What property of an object determines its inertia?