Answer:
When air resistance equals the weight of an object, the object has reached free fall.
Explanation:
- When an object has only force acting on it as gravity then, it experiences free fall.
- During free fall all the forces except gravity is balanced by one another.
- In the question, object's weight is balanced by air resistance so it is in the state of free fall.
- At the null point of free fall, object experiences weightlessness i.e. it feels like object is not attracted by any force.
Answer:
All planets have an elliptical orbit
all planets have roughly the same SHAPE of orbit
Answer:
time is a scalar quantity.
the relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
