A ball is thrown vertically upwards into the air, rises to some height, and then falls
back down again. While the ball is in the air, it is subjected to two forces: its
weight, W and air resistance, R. When the ball is rising upwards, W points_____ (up,
down, right, left) and R points_____ (up, down, right, left). When the ball is falling, W
points (up, down, right, left) and R points_______ (up, down, right, left)
When rising: up, up then when falling: down, down
When rising: down, up, then when falling: up, down
When rising: down, down then when falling: down, up.
When rising: right, down, then when falling: up, left