A man who has an open parachute is descending towards Earth at constant speed. The forces acting are shown below. P: the upward force exerted by the parachute on the man. Q: the upward force exerted by the man on the Earth. R: the downward force exerted by the Earth on the parachute. S: the downward force exerted by the man on the parachute. Which two forces form a Newton’s third law pair?
- AP and Q
- BP and R
- CP and S
- DQ and R