Question

Mass X (2 kg) and mass Y (1 kg) are dropped from a tall building at the same time. After one second, X will be moving​

Answer 1

See below

Step-by-step explanation:

Ignoring air friction...X will be moving the same speed as Y

vf = at

= 9.81 m/s^2 * 1 s = 9.81 m/s