A 300-Kg Stone Is Dropped from a 39 $\cdot$ S
B)19 $\cdot$

Multiple Choice

A 3.00-kg stone is dropped from a 39.2 m high building. When the stone has fallen 19.6 m, the magnitude of the impulse the Earth has received from the gravitational force exerted by the stone is:

A) 9.80 N $\cdot$ s.
B) 19.6 N $\cdot$ s.
C) 29.4 N $\cdot$ s.
D) 58.8 N $\cdot$ s.
E) 118 N $\cdot$ s.