Assignment:
Question 1. The two forces in each pair may have different physical origins (for instance, one of the forces could be due to gravity, and its pair force could be a normal contact force).
True / False?
Question 2. The two forces of a 3rd law pair always act on different bodies.
True / False?
Question 3. Given that two bodies interact via some force, the accelerations of these two bodies have the same magnitude but opposite directions. (Assume no other forces act on either body.)
True/ False?
Question 4. According to Newton's 3rd law, the force on the (smaller) moon due to the (larger) earth is
a) greater in magnitude and antiparallel to the force on the earth due to the moon.
b) greater in magnitude and parallel to the force on the earth due to the moon.
c) equal in magnitude but antiparallel to the force on the earth due to the moon.
d) equal in magnitude and parallel to the force on the earth due to the moon.
e) smaller in magnitude and antiparallel to the force on the earth due to the moon.
f) smaller in magnitude and parallel to the force on the earth due to the moon.