Halp plzzzz ASAP!!!
The speed of an object falling is directly proportional to the time it has fallen. After an object falls for 3 seconds, its speed is 16.5 m/s. What is the object's speed after it has fallen for 7 seconds?
A) 27.5 m/s
B) 30.7 m/s
C) 33.9 m/s
D) 38.5 m/s
Thx