Question 34
Air resistance cannot be negative - it only hinders motion. This eliminates B and D. When the parachutist is travelling at a terminal velocity, the air resistance equals his weight both before the parachute is opened and after, so the horizontal portions of the graph should be at the same height.
Air resistance cannot be negative - it only hinders motion. This eliminates B and D. When the parachutist is travelling at a terminal velocity, the air resistance equals his weight both before the parachute is opened and after, so the horizontal portions of the graph should be at the same height.
